Another thing I noticed that is frustrating, if I just try to move around an enemy the slightest, I trigger an opportunity attack, but enemies sometimes can come and go right next to my party members without them triggering an opportunity attack
Generally you can move around enemies, but not go outside their engagement range. There should be sword thingy appearing when you are to trigger opportunity attack, however that part of UI is often hidden underneath ground geometry. Pathfinding can be wonky, and if you order your unit to circle the enemy, they might go and trigger OA for no good reason. It did feel better then in my first run - previously it felt like I had to move units step by step to not trigger OA.
