If buying with Linux is not an option at your place, you can always buy one of the many models found with this search without OS and install it yourself. Most thinkpads should be all right. Most elitebooks should do. Dell laptops sold with Ubuntu somewhere on the planet should do. I'm afraid I can't help nore, you'll have to do your search. Finding out which laptops are sold with Linux somewhere should not be rocket science. I don't buy laptops very often, I tend to keep my computers for a healthy amount of time, I can't say what it's like in India in 2025.
> Can we at least agree to reduce the timeframe for things working flawlessly to "less than two years" instead of "a decade"? Yes you were able to go to the toilet downstairs but the toilet upstairs was definitely broken.
No. I understand that it can be a dealbreaker for some, but that's a minor issue for me on laptops, even unplugged, and I do watch a lot of videos (for environmental reasons I tend to avoid watching videos in very high resolutions anyway, so software rendering is a bummer but not a blocker). There are still things that don't work, like Photoshop or MS Office, so you could say that it's still not flawless, still, that doesn't affect me.