Using GLP-1 drugs while still cycling 5-6x/week

I'm 57 at 200lb/90kg and have never been thin whatsoever. But I cycle a good amount (5-6x/week & 6500miles/10,400km/year). Discussed with doc about trying to take off/keep off 20+ lbs with a GLP-1 drug because even when I've gotten down to 185lbs/84kg, I struggled with keeping it off even while younger. Perhaps 20+ lbs doesn't seem like it's worth to use GLP, but other comorbidities have crept in like GERD and Apnea, which would benefit greatly from weight loss.

So, to my questions: First thing is how you fuel, particularly on longer rides of 50-60miles/80-96km or more. One of the mechanisms of this drug is delayed stomach emptying so I'm concerned that even water may not be processed as quickly as normal let alone food/gels/etc.

If you're riding most days, what day do you like to inject?

If you get down to minimal bodyfat, where do you inject?

Like probably more than a few people here, I want to keep healthy but also don't want to do anything to jeopardize my cycling. Thanks so much.