Honestly not what I'd expect interacting with businesses as a customer. It feels to me like there are a lot of places where there should be some sort of training or guidance on interacting with trans customers and there just isn't.
Pharmacies especially seem to do a pretty terrible job with literally just the most basic accommodations. I couldn't get a flu shot that I'd scheduled recently literally because the pharmacy tech was so uncomfortable about talking to me that it took like 20 minutes for them to whisper to their coworker about me and put a and b together rather than just asking me. Even then, she couldn't figure out how to put me down as female to match the consent form I'd signed at home and they literally sent me away.
Half the time I call any call center i get repeatedly misge dered, no matter how politely or insistently I correct them.
If anything it seems like bigger businesses are worse about it.