Are you printing just the melody line of the music? In my study of old hymnals I found that some only printed the words, so it would not be unusual to do that. Another possible solution would be to print a fragment of the melody line and the words beneath it, this would help those in the congregation who like to have some music to go by.

The only pieces for which providing tunes would not be strongly advisable would be those that are nearly universally known (e.g., Joy To The World) that have no irregular text changes in verses (e.g. of such: O Come All Ye Faithful (depending on text used)).

Otherwise, it's basic hospitality* to provide if you want people to sing. Very much including the Ordinary - visitors won't necessarily be familiar with the particular settings your community uses.

* Yes, I am aware that many Catholic parishes are astonished to imagine the idea of functional (rather than cosmetic) hospitality is a duty rather than largesse - probably because we too often operate on the running idea that Y'all *Have* To Come Here Anyway (Else You Will Deserve to Go to Hell) So We Don't Need to Actually Do Anything to Attract You.

An area parish that a few times a year I attend gives their congregation a leaflet with just the hymn text printed, along with the tune name. Their people seem to know every tune and sing well, but it’s next to useless for visitors, particularly when they are doing something obscure. Beautiful liturgy otherwise, but that part of it feels inhospitable and insular.

Might this be a case of the person who is compiling this leaflet just not wanting the hassle? If you are printing this solely for worship, what else would you need “room” for? If it is really a space issue, it would be worth it to look into other formatting options. You can set the music yourself to fit the space you have. There’s also the English practice mentioned above of printing a hymn melody line, with the text underneath. That may be a decent compromise. I would omit the anthem text first, only if it is totally necessary, before anything for the congregation. But then again, how much space would that really save?

My philosophy in regards to worship aids and having music printed in them is to give the people as much musical notation as possible. Yes there were times I would only print text, or print only text on verses 4-9 of For All the Saints and those longer hymns. Occasionally at Communion I'd just print the refrain/antiphon and not the verses to save space.
I would often even print the choral SATB parts in our weekly worship aid, just because you never know who is visiting and may like to sing in harmony. Of course, then my in-pew spies would hear someone singing harmony and go over and invite them to join the choir. Bonus recruitment technique.

Nobody learns to read music without reading music.

One of the twelve Apostles also argued that the expenses being devoted to worship were excessive.

In most Episcopalian or Ordinariate churches the norm is to print hymn number and tune names, ordinary numbers and composer, print the texts and music for antiphons and responsories, and the texts of anthems. If you are currently printing all music, that would seem to be going far above and beyond the call of duty. I'm not suggesting that it's bad, just that it is highly unusual. (One wonders with some trepidation what those who think that too much space is given over to music want to do with that space.)

On the other hand, I have noticed that quite a few churches are now printing the entire text of the mass, the lectionary, the entire hymn (music and all) and the entire ordinary (music and all), plus the text of anthems in a multi-paged booklet. They do this every week.

One of the twelve Apostles also argued that the expenses being devoted to worship were excessive.

Yes, that was the episode of the poor woman who poured precious ointment on Jesus's feet. The apostles did indeed protest that it should have been sold and the money given to the poor. Jesus's response was definitive - 'the poor we will have always with us', said he, but that it was quite appropriate for the woman to do as she had done, in great respect and worship of him. This is a powerful lesson in the sanctity of treasure spent in worship of the Lord.

Anyways the dots are really just a crutch.

You don't lug a walking stick around unless it is doing something useful, even if the use is just to give confidence. I have mentioned before that after one service our DoM remarked that the PIPs had sung the Gloria very well, earnestly gazing at the worship aid, despite the wrong tune having been printed.

When the Pope said mass at Candlestick, there was music notation in the worship aids. Modern and Gregorian.

I not-infrequently print leaflets with new hymns for the congregation and always include the melody. Unless you have a really advanced congregation melody is certainly sufficient.

(I once played for some Calvinists who sang full four part and it was amazing! The whole congregation sounded like a giant choir... it was overwhelming.)

I also try and provide translations in the bulletin if there’s a difficult anthem but I’m inconsistent I’m sad to admit.

Blaise mentions another problem wth Catholic hymnody, namely, that our songbooks have no harmonies. A Presbyterian, Methodist, or Anglican hymnal are a treasure trove of musical delights to a young musician, and provide stability of harmonization and repertoire. But how is a catholic to learn the repertoire?

“You’ll need breaking bread 2020 booklet, respond and acclaim 2020, breaking bread accompaniment in TWO binders, BB supplements for every year since we last published the accompaniment, Choral Praise for the choir to sing harmony, instrument edition in two volumes if you want a flute player... oh, and all the hymn numbers are different from last years edition... good luck”