I rarely have trouble getting parts for laptops, especially batteries.
Then I don't buy consumer models, which are hot garbage.
I have a Lenovo laptop from 2012 that I just replaced a fan in...for $10. Two 2018 Dell laptops I recently replaced the keyboards and batteries, for about $20 each part (and upgraded the keyboards to back-lit too!).
Laptops aren't a great example of right-to-repair issues.