I don’t do one on Palm Sunday but we still do the Marian antiphon. It’s always optional anyway, but it is a good thing especially for congregations that have less to sing due to choral/Latin ordinaries and motets.

My experience of the "no recessional during Lent" is that it's often an awkward, ham-fisted attempt at creating a sort of stark stillness. If there are hymns at the other typical four-hymn-sandwich slots, it doesn't make much sense to omit all music during the recessional. Much more effective, in my opinion, is eliminating or vastly reducing instrumental accompaniment and doing things mostly a capella. This conveys a sort of starkness characteristic of Lent without being too awkward.

We will have a recessional hymn, just no postludes. I put a note in today’s worship aid warning people about the restrictions on organ use during lent, and encouraged them to leave Lenten masses in a “reverent silence”. YMMV

In Lent I do both processional and recessional hymns, but without organ, and no prelude or postlude. There's a treasury of good devotional music for the season that otherwise wouldn't get sung at my parish. IIRC, the only time I do silence is All Souls Day.

It’s merely an invention and not required. I think it’s to emphasize the austere nature of Lent. It often doesn’t work well in practice because people naturally want to fill that new-found void with chatter.

I always did enjoy it as a kid when we did it a few times at my parish though, because it made that roaring recessional of “At the Lamb’s High Feast” on Easter Sunday that much sweeter.

It’s merely an invention and not required. I think it’s to emphasize the austere nature of Lent. It often doesn’t work well in practice because people naturally want to fill that new-found void with chatter.

I think you’re right. I never heard of it until my brother came home angry from the Life Teen Mass he played guitar at because the priest unplugged his guitar during the recessional because it was Lent and he wanted silence for the recessional instead of a recessional “hymn”.

It would likely get rid of the round of applause for the choir after Mass as well, but at my parish it would just turn into a cacophony of chatter and noise. I have had to go outside for a walk before Mass just to pray my rosary because the people from the Mass prior were so loud that even earplugs didn’t work and I kept getting lost and having to start over. You know there’s something wrong when you have to go outside the church to pray because you can’t pray inside. But I digress.

We had the opposite the start of Lent in the Year of Covid. The pastor at the time wanted to encourage silence before Mass during Lent, so he got rid of parts of the Introductory Rites including the processional (we’re talking the whole thing) and the start of Mass. Basically it started at the The Act of Penitence. It only lasted for one Sunday. Somehow the chancery mysteriously found out about it and advised it’s not allowed.

The pastor I work for specifically asked for silent recessionals during Lent. Makes it easy for the musicians. My parish does not have the chatter problem.