No experience with the KW setup, BUT the FIRST thing you should do is book a test drive (preferably 2 in back-to-back slots) of a new Model Y. I recommend going with a spouse or friend so you can take turns driving and sitting in the back (the experience is different). Drive the same "route" immediately after (or before, heck both) in your 2022 Y so you can tell exactly how big the difference is. If you are really serious, rent a 2023 Model Y for a day on Turo (or equivalent if they have one in Demark) ...no substitute for an all day test drive over the roads YOU drive on every day.
The "Tesla" suspension will likely be the least hassle in terms of Tesla giving you any grief on it, etc.