Why do my recorded test object names change?

to add to cunderw it is better to have a solid base of name mapping from the beginning.

later when you add up things it is difficult  (or rather impossible) to clean it up.

to address your question 2 clean it up (delete unwanted / tide  up  ) now.

If test breaks it would be more easy to fix now than later.

and in my opinion recording is good for learning and get kind of  coding structure or parts .

but to add reliability and re-usability you have to modify those.