Hi, I've been running linux mint for a couple years now, but I'm still a complete noob, every time I need to install an app or I need to go through a bunch of tutorial. Always found a way through though. Anyway, I'm currently running Mint 20.3 Una, and the System Reports suggest I upgrade to Mint 21 Vanessa. I would like to do so, but I have a couple questions for you: 1/ My USB ports don't work, so I can't make a backup of my system this way (and don't feel comfortable hosting a backup on the cloud since I'm currently using Proton and still have to move to another service). So I'm wondering if an upgrade is safe because I can't do a fresh install right now? 2/ Related to the first question: I'm using a old laptop (asus zenbook from 2015 or 2016, can't remember), so would I be find with an old hardware such as mine?

Cheers