Goodwill now resells donated PCs with various linux distros pre-installed, probably to avoid paying for the M$ license. If one looks for a stripped down distro while the look maybe quite retro it tends to just work. I've been on antix linux on all my computers for over a decade and I'm far from a power user -- but a reinstall takes less than an hour and updates are either automatic or requested. Which is to say, M$ doesn't take over my appliance for hours every timeI turn it on because it is ancient hardware -- it just works.
On one (15year old MB) we stream videos nightly.