Nope. Recorded Tracks are named by a date/timestamp and there are loads of them.
I guess I just don’t have that many routes that I need to have pre-set. Most of my local riding I just had out into the hills and make it up as I go along. If I’m going somewhere new I’ll just create the route as and when I need it. I only have a few that I’ve downloaded from elsewhere or have created well in advance for planned adventures.
Being able to view them all on a map means those I have are easy to select so the naming convention is almost irrelevant.
Is there some particular reason you need to have so many Routes?
Edit: Just checked. I currently have about two dozen Routes in Basecamp, split between walk, road, MTB