Well, my macbook pro from 2009 is 64bit and normally uses efi but in order to get the nvidia GPU running I had to force it to boot grub2 using legcy Bios by using a CDrom for the ArchISO.
I replaced the battery and RAM on a Macbook Pro 8,1 running Pop_OS recently and the damn thing didn't even work better. The battery still only lasted around an hour or two on medium brightness and YouTube @ 720p. Absolutely garbage, and it really made me feel like a fool for spending the extra money on that damn thing.
Not a laptop, but I had an old motherboard from over 20 years ago not doing anything. Screwed it to a board on the wall of my shop. Added an old hard drive and some components out of the same old box it was in, and now have it running Mint. Found an old wifi card that works too, so I can look up parts and repair videos while I'm working on projects. Works great.
Got a 10 year old laptop that couldn't do anything whike running Windows 10. Couldn't install Windows 11 because no TPM chip. Was about to replace it when I thought screw it and gave Linux a go.
It now runs as smoothly as the day I got it, and am now a Linux convert.
I'm still running LXDE on an Acer netbook I got in 2010 or so. Tiny, underpowered little thing but still has a physical NIC which is why I still love it.
I installed Mint xfce on my landlord's low-end laptop and some time later Mint Cinnamon on my wife's 2016 Lenovo which was starting to show the typical signs. Great experience for both of them. I mean, the laptops work, which is the least you should expect from something you paid 600 bucks for
everything that isn't my main machine runs linux. my old laptop from 10 years ago, a PC made of my old rig's parts i use as a NAS and jellyfin server, and i almost got my brother to install linux on his thinkpad.