You could give Odysee a try. I was pleasently surprised at how well it works, and how nice the UI/UX is. Especially considering it is a decentralized platform.
It’s missing a lot of the content that youtube has. Especially if you trying to look up a specific video or niche topic. But there’s still a lot of great content available if you are happy to browse.
I have used a browser extension for this in the past, I can’t remember what one it was but I just did a search and found this one which looks promising:
https://addons.mozilla.org/en-US/firefox/addon/hohser/