Problem Installing trial version of Final Cut Pro I Mac OS Catalina 27 inch 2017
When it comes to select a destination The message reads "can't be installed"
PC has 32 GB installed.
171 GB available of 1,03 TB.
No clue what the problem is.
iMac Pro
Well, one reason could be you don't have Big Sur 11.5.1 or later installed. You did post in the Catalina community so that would be my first thought.