This was the biggest blocker for me. I've only used a windows DE. I have managed various headless linux systems though. I decided to try cachyos (plasma) a few months ago by dual booting and a few weeks ago I backed up my W11 install and no longer run Windows. I've ran into various issues but overall it was less scary than I thought. The issues range from figuring out which package manager contains what software to flickering issues when using Citrix. Luckily LLMs make these issues fairly painless.