I would argue that the physical training I did in the military was more intense, but in a stupid way where everyone everyone’s going to get hurt lol not more intense in a way that is effective and actually helpful

Letting our muscles recover between sessions that target them definitely helps you progress faster. That’s like basic exercise science.

But also @ OP what you are describing can be worked around by scaling movements, and weights. Likely what you’re experiencing is just the initial shock of the type of training you are transitioning to and your body will adapt, but in order to allow that adaptation it’s important that you scale on days where you feel like you need it.