For my main workstation and main laptop:

• Cosmic themed GNOME - I just like the way it looks and works without any changes. The basic tiling functions are something I find helpful at times too.
• Plasma 6 - It works pretty well and looks nice. I don’t do a lot of customization, so it’s not a big deal to me. For my other machines I’m currently using Cinnamon, GNOME, Budgie, and LXDE.