Let's say you've been lifting heavy ass weights, consistently eating well for a while, and you've accomplished the physique you wanted when you started doing exercise. You're pretty big, but you don't want to get any bigger, and of course not smaller.
Let's say you're eating exactly at your maintenance every day. How much strength training is required at that point to simply stimulate your current muscle enough that you don't lose it, but also don't gain anymore?
To put up an example, I'm wondering if someone who's been doing your main compound lifts with heavy weights 4x a week for a couple of years and built mass that way, can get by with working out 2x a week or maybe even simply do bodyweight exercises and not lose muscle (as long as they're eating enough, of course).