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My sit-on-the-couch computer is this #librebooted early 2010 Thinkpad X200t running #OpenBSD 7.2. I use it to run tut-tui (ssslowly), and do some *uber*-light web browsing with #w3m, #NetSurf, #luakit, sometimes #Dillo, and rarely, #Firefox and almost never #Chromium (even though it runs better than Firefox in OpenBSD* -- principles!!)
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#librebooted #openbsd #w3m #netsurf #luakit #dillo #firefox #chromium
Also, MX Linux.
I also have a #Librebooted #X200, and I wouldn't much like the bloat of Ubuntu on it.
Running Debian on it now, but I'd also consider MX, EndeavourOS, and maybe Void Linux (more advanced).