Did you go for Full Disk Access because Accessibility was insufficient?
No...I was taken aback by the Accessibility caution "Allow the apps to control your computer". However, I have since tried Amadeus using Accessibility and it works fine.
I wasn't too worried about Full Disk Access because some trusted apps need it (e.g. Carbon Copy Cloner, Cookie, Onyx) so Amadeus wasn't a concern as I consider it a trusted app. However, I have since put it into Accessibility.
For my information.....which would you use and why?