Fair call, the good thing about keto and IF is that it's a tool, you can use it when you need to, and don't have to when you don't need to.
I recently signed back up to the gym last month to gain muscle mass too and I can notice that at first my hunger was pretty high, but now I'm adjusting to that too.
There's a guy on YouTube who's been trying to make the move over to steemit @primaledgehealth - which is the reason why I created a steemit account - he has high muscle mass with low body fat and he utilises both Keto + IF and looks awesome!
Even though everybody is different and their bodies react differently to certain things, he's a good example that this tool works well with bodybuilding.
Here's his steemit page if you feel like checking him out :) https://steemit.com/@primaledgehealth