Well if you have a good bit of protien you will convert a portion via gluconeogenesis. I think supplementing with Creatine helps offset some of the strength loss. You don’t need as much glycogen for weight lifting if your phospocreatine Atp-adp can operate a bit longer so that the glycolyitic energy systems doesn’t have to kick on so fast. Also if your oxidative systems are Effiecient you won’t need as much glycogen to do the same or more work.
It’s all about metabolic condition lol.