I bought an Eleven Rack 7 years ago and have been using ProTools ever since. (I no longer have the Eleven Rack.) AVID, the company that makes ProTools, sent out an email In late September saying ProTools will not work with macOS Catalina. They followed up with another email saying AVID Link will not work with iOS 13. Oh, back in July, AVID sent out an email explaining they would be increasing prices on certain products and not others. As a result, my ProTools Subscription doubled.
When a company charges more money for a product, then tells you that product will not work, and have made little progress in making it work, but find the time to significantly improve the Video Engine (4K UHD playback, separation of frame rate and resolution) of an audio program, it can rub you the wrong way. I am not sure what will happen if I do not renew my subscription because I have already upgraded ProTools to the latest version. It is on my computer. Once it becomes compatible with Catalina I wonder if it will work?
Just in case, what DAW do you use?