Soulbarn,
Welcome. First, if it is bladder cancer it likely has been there several months or longer. Also, odds are with you because of all your prior health problems it is possible it is something else, from your diverticula. prior BPH treatment, to kidney stones nicking you urinary tract to many other causes..
You have done the first step, checking for a UTI. On the subject of getting to see a URO. A few weeks probably will mean nothing however, you are correct, you do want to get answers. With this COVID thing they are all likely slammed for appointment time.
I would use your own doc to push harder and letting your URO know you can be available to be moved up upon a cancellation....that often works if you can be flexible.
You probably will be given a cystoscopy and possibly a CT scan to check the urinary tract for any issues. There may be others that will have other ideas so keep posting away.