Definitely think a lot of creatives feel the same, that practice is too boring or too raw but it's just a part of the process! Some love seeing that process, and it gives them another way to connect, others don't really care but even just seeing the process on the channel can demonstrate authenticity.
Lots of options even if you don't want to show your face or voice as well. Like short videos on how do play the chorus of (popular media here), with text/graphics on the video to help people.
Don't discount external platforms as part of the entire journey, they can feed into each other. Twitch-Patreon-Youtube combination is really common, TikTok/Insta Reels instead of Twitch is another. Best part of such video-based combinations is content reuse, you don't need to generate new content per platform, fantastic for stretching out periods between intense recording sessions. Then add in platform specific content (like opening up some rough draft originals to Tiktok duets, encouraging people to add their own lyrics), and you've got quite a substantial cycle in place without much serious effort due to all the reuse!
