I've opted to installing opensource youtube app with Adblock and sponsor block.
LGTV Webos is so great, there is easy way to become "developer" and it will open official way to install homebrew apps on your own TV. Yeah, since you own it, it can be possible to do what you want with it.
Fu** you to all Golden-cage devices like Apple, Samsung, etc.
I prefer not to use the OS on my TVs and opt for never letting them online, I just hook up my Apple TV to it, this gives me complete control over my TV as things should be.
Fu** you to all Golden-cage devices like Apple, Samsung, etc.