Or you can do things the easy way and install a Kubuntu 25.10 and have all good modern amenities without a fight.

I started as a desktop Linux user in 1994 and I can guarantee you it would have been more work for me to install Kubuntu for the first time :)

Regardless, this one is going on eBay, so it's probably best for it to be running the latest Apple OS. Whether the $60-or-whatever I get for it is worth the hassle is another story.