I just solved my problem (albeit not much testing done, yet). Installing an Ubuntu mainline kernel 6.6.8 solved the display issue. With this kernel the screen wakes up perfectly fine after suspend. 
Of course using a mainline kernel is not the ideal solution (e.g. thinking of security updates), but for now it solves the issue and give us a usable notebook. With upcoming distributions using 6.6.x kernels and above the screen might be fixed out of the box. So for my part, Iโm looking forward to Ubuntu 24.04.
Here is everything one needs to know to install a mainline kernel:
https://wiki.ubuntu.com/Kernel/MainlineBuilds
Credits go to this Reddit posting:
https://www.reddit.com/r/Chuwi/comments/15x8n4l/comment/kb4c11h/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button