I had a similar problem with my Macbook M1Max 2021, according to Belkin, the problem is with Apple. Here's what I can advise you:

Power cycling:
- Turn off your Macbook completely
- Unplug your monitor
- Plug the HDMI cable into your Macbook and your monitor.
- Plug your monitor back in
- Turn on your Macbook and the screen again

Both HDMI and Displayport can be a bit dopey at times, so a full power cycle can help.

Otherwise, I would try a different HDMI cable. Last but not least, you can try a USB-C to HDMI cable, but that's not a good alternative in my opinion.

My solution was to step away from Belkin. I reported the problem to Digitec and changed my dock to one from CalDigit (I used the TS3+, the TS4 would be even better).