I've been testing WordOps on Ubuntu 20.04 and it works flawlessly.
I usually install the web stack: wo stack install --web
This install PHP 7.3 by default on Ubuntu 20.04 which comes with PHP 7.4. Of course, I can remove PHP 7.3 from the wo stack and then install PHP 7.4. This worked without any issues in my testing.
It did get me wondering if there is a way to change the defaults for the web stack command itself?
I guess I can just manually install my preferred stack.