Hi @0zedek0 – thanks for the screencast!
Do you know what is adding those “Gutenberg Editor” links to your admin area? That’s not something either in WordPress core nor in the standalone Gutenberg plugin itself.
Once you narrow down where that’s coming from – likely a plugin – try deactivating it.
If you’re not sure where it comes from, try deactivating all your plugins and then reactivating them one by one to find the culprit.
If you’d prefer not to deactivate plugins on your live site, try the Health Check plugin, which will not change your live site – https://wordpress.org/plugins/health-check/
@0zedek0, did you have the chance to test the steps described by @zoonini?
I am going to mark this as solved for now, as the issue seems to be coming from a feature that’s not native to Gutenberg, but please feel free to reply or open a new thread if you conclude that this is indeed coming from Gutenberg itself.
Thank you!