I’ve been dealing with higher LSS (life strain score) lately. Sometimes, it is wise to just rest. When I do think I should train, and I think it has value, I reflect on the value and the change I am seeking. For example, I want to hang with some fast guys on a group ride.
As for the OP, I have found that 2/week is enough. Also, using the AT mentality, sometimes just doing a sustaining workout is enough. In that case, you don’t want to lose ground. That takes very little. YMMV.