I'm looking to move away from Notes because it has a serious bug (possibly only when using Exchange, I'm not sure) where notes longer than about 3 pages get truncated without warning. I found this out the hard way when my "big list of ideas to work on later" note turned out to be missing about a year's worth of data.

It's had this bug for several years across a number of versions. I now have a huge buffer of sacrificial text at the bottom of any important note, which I then split if part of that buffer goes missing.