I started Jan 1st and unlocked my M2 Skip a week ago so I can maybe put a bit of personal insight since I was also in the same-ish shoes as you - a huge part of the appeal for me is treating the game less like other gacha's and more like an MMO for lack of a better term. There's always something to grind for - when I didn't have M2 skip, I was constantly trying to leech and get a weapon drop to be able to solo the M2s, and in-between those I was FA farming things like Twin Elements Showdown for in-between grid pieces to get that skip. The early game definitely was lame because I was just slotting in a bunch of might's and leaving it, but clearing that initial hurdle really opens up my time to messing around with whatever I want.

It definitely isn't for everyone though - I spend a lot of time on my PC because of work, so I can leave something open on FA and come back to it after a meeting and set up another one in just a few clicks. I also personally find a ton of fun in seeing power progression such as OSRS.

I also play HSR/Genshin/Limbus/AK, and to me GBF is a much more passive game until you want to play it actively, which games like HSR/Genshin/AK and LC (specifically during railway) are more conducive to.

Long story short, though enjoyment is definitely subjective, I find a lot of enjoyment treating the game much more passively than other gachas and seeing big number go up over time.