1. The initiative system...I would very much prefer to have a set order to act according to your portrait order and a balanced turn order according to number of enemies.
I find Wasteland 3 boring for this reason, a little bit of randomness is more interesting. Probably just subjective.
2. ...enemies that also have a lot of HP.
HP bloat has already been discussed on this forum, also that fights with a lot of enemies are problematic for several reasons, but difficulty is not one of them.
I think it is only fair if the AI is good. Right now, it really is not. E.g. everybody focusses on the party member with the lowest AC (which is often Gale), which makes some fights exploitable. Some enemies will have abilities that you do not know anything about, beforehand. It was the same in the BG games. I fondly remember buffing up for two minutes before attacking Firkraag in BG:2, only to be hit by dispel magic, fear and an atomic bomb aka dragon breath in the first 5 seconds of the fight

Or encountering a demi-lich with an endless supply of imprisonment spells.
4. Movement and range:...
There are fights that drag on and on and are quite boring, e.g. fighting all the L1 goblin groups as a L3 or L4 party, but movement and range are not important factors IMHO in this regard. Some enemies have a lot of movement (many have not), which changes the tactics, which I find refreshing. Ranged chars are at an advantage in those situations, just like it should be.
5. The out of combat movement
Yeah, that's really bad, as has been discussed on these forums in multiple threads.
6. Glitches, bugs and exploits:
That's EA for you. The hag is one of the buggiest encounters right now. Have a little bit of patience and try other areas, most are better.