GP8 - Is Guitar Pro 8 compatible with Ubuntu?

Unfortunately Guitar Pro 8 is not supported with Linux

You can eventually install and use Guitar Pro 8 via Wine but please note we can not guarantee you will be able to use it, or provide support in this context. 

Guitar Pro 8  is officially supported and compatible with Windows 8,10, 11 (64 bits) and macOS from macOS 10.13.