Similar experiences on PS4 Enhanced Edition.
1. I've noticed the game does notably freeze, not just GUI lag. The game will autosave every time something changes (reach space, create orbit, circle the orbit, float over a new biome, etc.) and it has no regard for any adjustments I may be making at the time. This has ruined maneuvers. This has ruined landings. This has cost lives.
2. I have not had any issues switching from "Linear" to "Rotation" while in docking mode, but I do think it is a hassle to not be able to do both. We have a D-pad, we have a joy stick, we have triggers - let's use these axes!
3. Also have felt the docking bounce - I believe this may have been an invisible clipping issue. I have had several docking ports work just fine, but one space station would not connect. I moved the clamp-o-tron inward slightly for aesthetics and storage, but there were no parts hanging over to touch when docking. When I rotated the station parts they docked fine on the un-moved clamps.
4. Fuel transfer is something that needs to be added to the KSPedia or Tutorial missions! There is no instruction for it on console! Aside from the difficulties of learning about it from searches, I have also had times where it just didn't work right. Too much...
A separate issue I've had that relates to the lag and Mission count is that some of my debris will occasionally explode out of the solar system. I'll clear up the clutter every few missions and sometimes I'll have debris quadrillions of meters away and traveling at millions of meters per second. And accelerating! I am certain this has caused processing issues elsewhere in the game.