Most likely.

But I had a lot of muscle mass to begin with, due to years of bodybuilding. And I still have significant muscle after the diet, despite of not touching a weight during all this time (I know I should have). People still ask me about my lifting routine even though I didn't lift in like 2+ years.

Knowing myself, it'll come back within a couple of months of lifting weights and getting proper protein, once I get back to it. And I plan on doing exactly that. Being fat kind of made me lose motivation to go to the gym. It's a vicious cycle I imagine many fat people struggle with. So I prioritized losing fat first and foremost.

They most certainly did, these drugs stop you from eating, not magically burn fat and leave muscle mass alone.

It has the same effect as starving yourself. Go look up pictures of "ozempic face"

I wouldn't say "starving yourself", there's no reason to believe it's different from any other diet (except it's easier to stick to). If you get enough calories, prioritize protein, do some resistance training and get proper sleep, you can minimize muscle loss and in some cases even gain muscle while losing fat.

"Ozempic face" is just the result of excessive weight loss. The term is basically putting the blame on the drug for people wanting to continue to lose weight even after achieve a healthy weight.

It's completely unrelated to GLP-1s. 5+ years ago, we would have just called it "Anorexic face".