Hello @Tomaz ,
Currently, we are tracking about 800 "problems" in the WordPress code base. 8k is unexpectedly many.
May I ask for one or a few of them that are weird or you don't want them to see? We will improve the analysis continuously to not report anything irrelevant.
You can always disable problems or just specific problems using
php.problems.exclude setting (https://docs.devsense.com/en/vscode/problems#phpproblemsexclude)
I hope it helps, thank you