I think many content creators have recognized that it's important to expand their brand outside of youtube so they're not so beholden to youtube. I wonder if this is opening cracks for competitors.
There's Nebula. https://nebula.tv/ Many of my favorite channels (mostly civil engineering, science, history) are there, and release there first before YouTube. Sadly the UI is not as good, and there are no automatic captions like YouTube. But it's cheap and it works... And of course there's Patreon.
Most Patreon accounts I've seen just link to unlisted Youtube videos.