I've had top surgery, a hysterectomy, and an unrelated to transition hip surgery due to an injury all since starting T. My top surgeon didn't have me hold my T at all, nor did my hip surgeon, my Ob surgeon had me delay my normal injection just a couple days to give more room from the surgery date (I inject weekly), but that's it.
I always say to go with your providers advice because everyone is different and there may be a reason they recommended holding it specifically for you. However, I would recommend reaching out to the office again if you are uncomfortable with their advice and have a discussion about it. If they can't give you a reason why you should wait an additional week besides "I don't know... because you've already waited a week so what's one more?", I would push back on that.
I have heard the clotting reasons as well. That's the justification I've heard in the past (that exogenous T increases risk of blood clots, trans or cis). However, studies are somewhat inconclusive on the actual risk and at what levels. Blood clots are a huge health risk even if the chance is small, which is why I say always follow your doctor's advice as they may have reasons for you specifically. They should be able to give you an articulated reason, however. I think a provider at least owes you that.
