My T usually runs 3-5min late and, once 25min late! I am a very timely person as it was a huge deal in my family. Personally I just take it as part of the quirks of who T is, he is human... sometimes very human. The only time T and I talked about it was the time he was really late as it made me very anxious and he was very embarrassed/ashamed of having run that far over. He felt that with his level of experience he should have scheduled a break after that session knowing it would be difficult to be timely.
I also know he has gotten a little worse now that he is doing mostly teletherapy. Having only worked face to face for 30ish years there is a different rhythm to teletherapy he just has not gotten a grasp on.
BUT... consideration goes both ways! While he always ends sessions right around an hour after they start he has always been very generous with his time on the phone or email. If he were charging me by the minute for phone calls/email I think I would be far less patient with him disrespecting my time.