How long does it take to renew a British passport?

The website is quoting 11 weeks, but anecdotally I’ve heard it’s much faster. As in 7-10 business days fast upon receipt of your old passport. Can anyone verify?

Back before COVID it took one week, but right now it will take longer. It took a month for my daughter’s first passport to come, but renewal will likely be much faster than that since there are less checks that need to be done.

Pretty fast for me after LNY. I was surprised.