I use a 3 different layouts, one of them Btree. And drag and drop one window over the other will swap position of both windows. So functionally, it is working (for me)
That is cool and I didn’t know about that, but that is not what I meant. In most tiling window managers, regardless of the layout. You can increase the size of any individual window and all other windows will adjust in size.
That isn’t a good idea. You should never install gnome and kde together on the same system. There are often lots of conflicting stuff. Some distros handle it well, but most don’t.