As a Scholar the only time my MP has ever gotten low was when I had to Raise repeatedly or when getting overzealous with Manifestion/Accession, or both lol.

Honestly I found melding Piety really helped with MP regen, though it’s probably just copium lol (i don’t have the money for full Crit/DHR melds I am a failure SCH I know lol). I did feel like, the times where I was low, the MP regen was quite a bit slower than usual, but I think that’s just because piety values have fallen with increased level cap etc.

Basically as others have said it can feel a bit rough compared to before but it’s mostly just because we’re not all at higher Ilvls/piety values/etc. Not to mention higher Ilvl means higher healing which ultimately means less MP/GCD use requires