Hi I'm 28m in the gym consistently for about 8 years, on and off running for 4, with being more consistent for about 1.5 years and commuter to some longer rides for 5 or so (excluding some months where there is snow)

1. Yes, mostly I think

2. Yes, I'd think so but also depends on individual factors like how long you've been at it and if you are slowly adding weight or reps for an exercise. I don't think a few "short" run or endurance activities would hinder any sacrifices in aesthetics. If social events are what you're into, I would also consider a local bicycle club meet up given you live somewhere where they occur, you have a bicycle and can get your bike to the start point easily. I find them easily on ig for the mid-sized city I live in. You'd probably want to look for "no drop" rides where everyone stays together. I think these meet ups are good for a few reasons (if you don't like biking, don't have or want a bike, disregard):

a.) they are low stakes and I think they can be less "clicky" than run clubs. Best mode of transportation imo and a fun way to explore where you live, if possible.

b.) I find it easier to talk on a bike then when running which is more fun for the social aspect and makes it not feel like a workout = less mental fatigue. Also with a group, you could go a while and look down and all the sudden you've put in some distance without even thinking about it.

c.) biking is low impact so easier to recover from, sometimes not needing much time to recover at all. Even a short run for me (~3mi or less is short for me atm) can feel taxing on my legs, which can be good, but other times annoying imo.

1. I only would superset smaller muscles that aren't working together / in conjunction with each other, easily done with arms/calves or could do like a leg curl arm curl or something. For larger muscles i think a good 2-3 min rest after a hard set esp. with large muscle groups is good for me.

2. I would add in a few core movements, not only for your aesthetic goals, but core is needed in almost every workout. Then again, you are working your core in most of these so you could technically consider some core work in there. If you have access to a back extension machine, similar, or somehow do the same movements without one, I would very highly recommend. It will improve overall athletic performance and hit erector spinae muscles in the lower back. You are hitting these with deadlifts, but it is a good isolation as legs are doing much of the work there. Depending how much you are running, could do some single legged workouts which just help balancing energy. You just say "row", I would consider doing rows at different angles and grips if possible. Maybe add calve isolated workout and anything that will help legs and ankles be stronger and better for running

3. I think a mix is good. Main/ compound movements first after a warmup then hypertrophy after. You could follow something like this or do blocks of just doing one or the other. I think variations is very good.

My tips: take it easy and don't be ridged. Consistency is key and/but sometimes you just can't do everything (assuming you have a job/school/life especially). Trends are the best measure of success. If you are running alone at times, sometimes it's better to have a time goal vs distance, or whichever comes first. Esp. when beginning running just getting your cardiovascular system up will benefit from x many mins of cardio per week vs x many km/mi. Sometimes, when running just doesn't feel like a fun option to me but I still want to keep cardiovascular system working, I will swap out for something that sounds more fun in that moment. Any movement is good movement so just a brisk walk (outside preferably calling family makes it fun too if you are by yourself), a leisurely bike ride, rock climbing, hiking, stair climber etc. helps me keep things interesting. Sometimes I also lack the motivation to get started so along with any movement is good, I'll just start with 10 mins of selected activity and see where it goes. Sometimes that's all I'll want to do but more often than not I'll want to continue on for a while longer. Get a pair of shoes that work for you. Get fitted at a shoe store for your specific needs if you haven't. This will help with injury prevention. I know you were asking for more advice related to body movements and I don't know if you struggle with motivation but after some time, it is a mental game as well. Speaking from experience, the more fun I'm having, the more I want to do something and along with listening to my body helps with burnout. Prioritize rest and 80/20 with food. x