I’m using this all the time myself. There is no login to YouTube required and it supports adding subscriptions and doing everything important you can do on YouTube.
And the best part is no ads whatsoever.
For some reason like recommendation algorithm, I still use youtube premium.
How is that different from the free version in a browser with Ublock Origin?
If you use premium, the creators still get paid by YouTube for your views. If you use an ad blocker, they don’t get any money from your views.
When you see an ad on YouTube, the creator gets 55% of the revenue and YouTube gets the remaining 45%.
If I want to support the creator, I would rather donate directly or subscribe to the person’s Patreon. YT Premium just gives no extra features for Youtube itself so could not justify paying.