This has been raised a few times before. I’m not aware of anyone currently working on it. It’s fine if someone wishes to add support. In the past there was [WIP/draft] - serial bridge - mks/bigtreetech uart lcd support by etet100 · Pull Request #3885 · Klipper3d/klipper · GitHub . It’s possible Desuuuu has code for this ( GitHub - Desuuuu/klipper: Klipper is a 3d-printer firmware. Modified to work with DWIN T5UID1 touchscreens. ) but I don’t think he has plans to merge into main Klipper repo.
-Kevin