With friends: D&D or board/card/tabletop games. Pick a night and get together every week or whatever works for everyone. Play the same game or something different each week. Settlers of Catan and Cards Against Humanity are other games that jump to mind for me.
Generally: read, write/paint/draw/model/etc., learn to play an instrument, cook/bake, learn something new via podcast or videos. Most of these things can be done with others if you choose.
I had this exact thing happen in Duolingo. I remember being annoyed, because in school I had learned to say "comment t'appelles-tu" but Duolingo taught me "comment tu t'appelles." Then it seemingly randomly switched back to the original one I knew, like I should have been using that the whole time.
What happened I think, is we left the "s" off of the end, so Duolingo marked it as wrong, but rather than add the "s", it gave a different correction (the more proper way to say it). If you had put the "s" on the end, it would have been accepted as correct.
Veg options I loved:
Cheesy gordita crunch with beans, sub nacho cheese doritos locos taco and creamy jalapeño sauce (quesadilla sauce)
7 later burrito with nacho cheese added
Cheesy fiesta potatoes, add creamy jalapeño sauce and mexican blend cheese
Cheese quesadilla with extra sauce
Nachos and cheese with an additional side of creamy jalapeño sauce
Crunchwrap supreme with beans/bla ck beans
Grammar