Dennis-Developer I think yes.. Why not? However it's a bit too early to switch to PHP 8.0. This is from Wordpress Core website (if you use WordPress):
WordPress Core aims to be compatible with PHP 8.0 in the 5.6 release (currently scheduled for December 8, 2020).
However, PHP 8.0 is a major version update with a large number of changes that break backwards compatibility, and many features that were deprecated within the PHP 7.x feature releases have been officially removed.
More info here: https://make.wordpress.org/core/2020/11/23/wordpress-and-php-8-0/
