Side note: there are some business insights you can get from a company using serial ids.

i.e if you sign up and get user id 32588 and make another account a few days later, you can tell the growth rate of the company.

And this is possible with every resource type in the application.

I do wonder how much the url bar junk thing matters these days. I tend to use uulids (waiting on uuid v7 wide adoption), and they're a bit ugly, but most browsers hide most of the urls now anyway. The fact that there is a builtin time component comes in clutch sometimes (e.g. object merging rules).