Hello, all. OP here. I neglected to ask why it's important not to delay replacing the tensioner and drive belts, if in fact they are leaking/cracking - I haven't yet had the repairs done and currently have 61,000 miles, maybe 6-7k more than I did in May '22, when they first notified me of the issue.
I have been doing a lot more stop-and-go city driving these past three weeks and have notice that the car doesn't shift up or down as smoothly, perhaps my driving has just worsened.
I plan to have the belts and tensioner replaced this weekend. As always, thank you for your advice.