Used FreeTube for about a year, I like it, it’s a simple way to get a subscription box without having to set up all the RSS stuff. I’d say it’s helpful for people, even if they just use it as a feed to open each video in a browser.
Only gripes are that playlists need more work and development seems hella slow.
I don’t watch much YouTube these days, and I use an RSS feed for the few channels I still follow. Enjoyed it for the time I did use it and would recommend to anyone looking to use YouTube without an account on desktop.
Edit: Wanted to add that I also think using FreeTube is a better idea than fetching your subscriptions through an Invidious account, since all the subscription and watch data is stored locally instead of on the server of whatever random Invidious instance you picked.