Damn. Mojave, really? I don't think many folks realize what a huge-ass concession that is on Apple's part. For the launch of Logic Pro X and every point-x update since then, Apple has added SOMETHING that required the latest OS. To release a major product that doesn't require Catalina is a big damn deal, and shows that Apple isn't entirely ignoring the protests of music users who are having categorically cataclysmic Catalina catastrophes.
It will be interesting to see what Apple does with macOS 10.16. Between the virus, which may or may not have slowed down development, and the reported issues with Catalina, 10.16 may be one of those macOS updates that sets out to clean things up more than advance the technology. WWDC is next month, all online, so we will see.
[That is presuming that Apple follows course and releases another major update this fall after announcing it at WWDC in the spring. It's possible they will use this as an excuse to just keep shipping updates to Catalina for the next year that fix any real issues (not 32-bit apps don't work. That ship has sailed). OTOH, they might release 10.16 Avalon (my guess, it's the only incorporated city on Catalina Island) that exists largely to fix issues with Catalina, because it's an easier pitch to say to people, "go straight to Avalon, skip Catalina." Not that Apple would say that, but other people do. Apple has done that before with 10.6 Snow Leopard, 10.11 El Capitan, and to some degree, 10.13 High Sierra, where the changes were more "under the hood."]