I used Wingo (https://github.com/BurntSushi/wingo https://github.com/BurntSushi/wingo) for a while and it did the floating/tiling mix pretty well. I also used

I used Wingo (https://github.com/BurntSushi/wingo https://github.com/BurntSushi/wingo) for a while and it did the floating/tiling mix pretty well. I also used StumpWM (https://stumpwm.github.io/ https://stumpwm.github.io/) for years, primarily in purely-tiling mode. The killer feature for me was that you (the user) define frames on the desktop, and then windows are placed into frames rather than resizing and re-jiggering everything whenever a new window opens.