Paper WM
A scrollable tiling window manager layer on top of GNOME Shell. My number one favourite reason to use Linux. When I moved back to Windows I made Winfinity.
It's written using JavaScript
Other people's thoughts
2020-Nov It's Foss
Julia Evans wrote a piece in 2020: "I’ve been using PaperWM for 6 months on a laptop and I really like it! I also really appreciate that even though it’s configurable (by writing a Javascript configuration file), it does the things I want out of the box without me having to research how to configure it."
CardboardWM and EndlessWM are similar
https://news.ycombinator.com/item?id=30402358#30447391