Sparky Linux image: sparkylinux-2021.03-i686-rescue.iso

 I'm here with a "rescue image" of Sparky Linux.

It didn't come with much, but since it is Debian-based, I ran an apt update, then an apt full-upgrade to bring the available packages up to date, then, to see what else I could get, I ran apt install firefox chromium and fortunately, both of them were available, so now I am here with Firefox 86.0.1 (32-bit).  Most of the time I grab the 64-bit instance, but this is a 686 image, so it captured the 32-bit image, even though I have a 64-bit Dell Inspiron 5558 laptop.

CloudReady by Neverware - Chrome OS old laptop alternative

 Google's Chrome OS isn't available for consumers to install, so I went with the next best thing, Neverware's CloudReady Chromium OS. It looks and feels nearly identical to Chrome OS, but can be installed on just about any laptop or desktop, Windows or Mac. And, although Neverware has paid versions for enterprise and education users, its Home Edition is free for personal use.

Complete article on CNET @ https://www.cnet.com/how-to/how-to-turn-your-old-slow-laptop-into-an-awesome-chromebook-for-your-kids/

Not just for kids; I got this working nicely on an old Lenovo Thinkpad X201.