I am not the full expert on the subject, but I assume the profiling is to a lesser extent. For one you don’t browse within a Google account.

I also like the slimmed down UI and subscription management of invidious compared to yt.

And don’t forget no ads and sponsorblock. Although some add ons like vinegar for safari get you pretty close to uninterrupted viewing.

All said, probably not the best in regards to pure privacy.