The video is probably factually correct, but very disingenuous with its interpretations and conclusions imo.
Of course Mozilla and Firefox have their own share of problems and bad decisions, and they are pretty well known and talked about from what I've seen, but equating it to Google and Chrome is just pure cynicism. Mozilla having to earn money somehow (1% donations!) and Google trying to maximize profits at all costs is not the same thing, even if it might look similar sometimes.
If you don't want to pay for an account anywhere (VPN/Usenet/Debrid/...), then you might want to try out Torrent + I2P. I haven't used it myself, but from what I know it's a slower but completely provider-less alternative to VPNs for anonymization, and Torrents are free ofc.
That being said, you'll have a much easier time if you pay for a seedbox for example. It's just a small server in a datacenter somewhere, that happens to be better connected and more private than your typical home internet connection, and that you can use however you like.