Albeit not completely beginner friendly, the arch wiki explains btrfs features and manual configuration pretty well. If you are looking for a guide to a snapshot tool, then it depends on your distro, but they probably have an article for it as well (also, check the "related articles" section at the top of the page).
NeoZet
joined 1 year ago
It's probably due to Invidious and Piped instances getting rate limited. LibreTube uses them as the source of the videos, i think.