I found a solution for the problem. Debian bookworm has nvidia 525.147.05 as graphic driver. This driver version does not have flicker issues on my setup.

I love Pop_OS, I am not encouraging anyone to switch away from it, but in my case I wasn’t able to install a different version of the nvidia driver and Pop only provides the latest one, so I saw Debian as a easy way to have an older driver version.

I wasn’t able to make any progress. I decided to wait it out for a new driver version that will hopefully fix the problem.

Unfortunately I was not able to find older driver versions in the Pop shop

By the way, if you’re curious of the issues that are currently present in the latest nvidia 545 driver, here is a thread from the nvidia forums.

There is currently no fix.

If you follow the thread, there are links to other 2 threads with people experiencing similar issues.