Sorry, I didn't read the article. Thanks for picking me up on it.
I just use my Brave browser which avoids ads and doesn't require login but I see now that FreeTube offers a few customisation features and allows you to import your subscriptions.
And there are privacy benefits too. With Freetube your watch history is stored only on your computer, not YouTube’s servers
Really? I imagine it is free because FreeTube collect data on you.