Apologies for commenting on an old post. I've been having this issue for years, but it's been significantly more frequent throughout 2023.
For me the issue was related to my screenshot tool. It automatically copies the captured area as a PNG image to my clipboard, which appears to make WSL very unhappy with me. Clearing the clipboard by copying some other random bit of text helps calm it down after several seconds.
It appears to be the most impactful after I've used WSL in some way, but can happen with or without Docker running as well (no idea why). Clearing the clipboard in these cases also helps.