One big reason people lifting or into fitness gravitate toward reta over the other GLP1s is that it doesn't eat into muscle the way Tirz and Sema tend to, so not sure where that other info came from. Ran a single 1mg dose weekly for the first month, then split it to twice weekly at 1mg for a couple weeks before pushing to 2mg. Down about 20 pounds in roughly two months, probably faster than a lot of people would recommend, but Reta's genuinely changed how I eat. My diet was terrible going in and I knew it. It's forced better choices - you fill up quicker and stay full longer. People say it's not a miracle drug, and sure, but it's held up solidly even at low doses. A buddy of mine dropped 40 pounds on just 2mg. Only downside on my end lately is trouble falling asleep the past couple nights. Once I'm out though, I sleep straight through from 1-3am until 7.
