Currently using Bookworm and KDE as my desktop right now. Works really well! If I need more up to date software I use Distrobox and run whatever distro’s version of software I want. I have both Debian Sid and Arch Firefox versions installed on my machine right now just to see if it worked and it’s flawless. I mostly just run apps from SID container and it exposed the app to my desktop wonderfully. Really the only way I will fly these days.