I had the same problem waiting for my bladder cancer biopsy results. Was told it depends largy on the hospitals lab. Some get results in as little as one week, while others are a month or more.
There are both alternative treatments and alternative ways of test for cancer or recurrance.

I have had stage II muscle invasive bladder cancer and am now cancer free and doing my own version of maintenance which I also used heavily during my treatment.
You might want to look at taking 95% standardized curcumin wit black pepper extract to both help recovery and possibly inhibit reccurrance, I would reccomend 1000 mg doses posssibly more than once a day. It is know to reduce side effects of treatment.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6277549/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5840955/
Also "timed release" vitamin C is helpful for building the immune system.

There are now less invasive ways to check for reccurance than cystoscopy. You can now take a simple DNA blood test customized for your biopsy cancer DNA. I have taken the Signatera https://www.natera.com/ and just to make sure there was no false negative I also took the Galleri test, which also looks for many other types of cancer. I believe Natura is FDA approved while Galleri is not yet approved, But I think it will be.