I've been subscribing to a few movie and TV reaction YT channels. Some are annoying -- the host/s can't stop talking long enough to hear the actors. Others will keep trying to guess the plot which gets annoying when they're wrong 75%+ of the time.
But, the few good ones I watch tend to be for horror and older (80s, 90s, ...) movies. I can't believe how many have never seen classics like the Wizard of Oz. Their reactions are as entertaining as the movie sometimes.
I sometimes watch a reaction video for something I, too, have never seen. The 30-60 minutes it takes to watch that will let me know if I'd like to see the movie in its entirety.
Most popular reaction channels offer full length reactions through Patreon accounts. You can pay to watch the whole movie rather than the Reader's Digest Condensed version, but you still get the reactions spoken over the movie. So, at least have a chance to experience the entire movie.
It adds a twist to watching alone by giving you someone to enjoy it with. And the comments can be interesting. Everyone wants to educate others on the trivia they know/Googled.

It's not Netflix, but I did notice Netflix has been deleted from the topic thread. I guess that's for a reason.