For wrist fatigue having better paper and pen help a lot, but part of it is just using the muscles and not having a death grip.
This being said I don’t like that this is hand writing with a device. It just isn’t the same as actual physical media.
And yeah I can learn how to write better with my hand but i can also learn how to be a swordfighter. But I don't see how that should be a prerequisite for a blogging platform.
I am not saying nobody will ever like this. But as someone who has used blogging platforms for a long time to be considered a power user, the stated comment was my prespective.
Just worrying about having it be perfect already tells where the actual problem is. Everything doesn't need to be polished or edited or perfect. Things can be fun and loose and whimsical. Sure some people can't read my hand writing or they are blind and they can't get to my content, that is life. Again my enjoyment is paramount, not some potential reader. You should be writing for yourself.