A tablet from 2019 needed a different OS to still be usable today…? I have 3 people with Galaxy S10 in my family because of me, the latest one got one not even a year ago. They are from 2019. They are perfectly fine with stock OS.
What does the extra free RAM help with?
Do not get me wrong. We absolutely need to own our devices and be able to install whatever we want. Or repair it wherever we want or at home.