you don’t if it’s not in sid yet it’s not even worth it to try. if you want kde6 before then your best bet is try kde neon but that also has down sides and is base on ubuntu not debian.

Dust0741 my apologies. As others rightly pointed out I didn’t answer appropriately and deleted the postt… You won’t be able to get the latest kde on Debian. You could look at Sid or Testing but I don’t know if they ship that. I dont use Sid or Testing so I couldn’t help you if they do.

it’s Debian “latest” doesn’t even enter the conversation (without a lot of garbage and pain, or flatpak)

You might be able to run the latest KDE or gnome in a distrobox podman or docker container:

https://github.com/89luca89/distrobox/blob/main/docs/posts/run_latest_gnome_kde_on_distrobox.md

deleted by creator