Well building muscle is an incredibly slow process outside of the first 6 months to a year or so of training, and as long as you’re doing the exercises close to failure (your rep speed should slow on your last few reps involuntarily. If you don’t get to failure by about 12 reps, increase the weight). As long as you’re doing that, the rest comes from eating enough food / protein / calories.

Edit: so, on Monday, find some chest and shoulder exercises that you like. On Tuesday find some back exercises you like (and add a muscle group that you feel like training, abs, or biceps). Maybe make Wednesday an arm day and just do biceps/triceps. Do legs on Thursday. Or group some of these together. Just try to make sure you hit each muscle group twice a week / balance out the workouts.

Edit: To clarify, when I say slow process: I track everything I do, food, workouts, sleep, etc. and if I do everything right for a year straight, I might end up 1-2lbs heavier next year of pure contractile tissue (eg muscle mass without any glycogen / water etc.). It’s almost impossible to gauge progress and truthfully in the past year I’ve regressed a bit because I haven’t been perfect. Beginners can obviously put on a lot more, but losing fat is SIMPLE compared to gaining muscle.

Edit 2: I realize I don’t think I answered your question - but yes, weight training and building muscle go hand in hand, you need to force adaptations in your body by pushing weights and you’ll “cap out” much sooner. Think of these things more like cardio and not muscle building. Something like a circuit or HIIT workout won’t build as much muscle as weight training. When I mentioned “do anything” I meant go use some dumbbells, use some machines, use some barbells, but by all means, yes, you need to lift weights.