I've been doing every other day rides so 3-4 rest days each week. I might lift a few weights on off days but nothing too major. I started doing this when I got back into biking in early pandemic period, and I really like the rest days so have just kept them and instead have made the rides longer... started at 15 minutes and am at 45 minutes on average now. This is another reason why I don't mind going full gas most of the time, I should be fully recovered from the previous ride.