If you are using the open source Firefox web browser to browse YouTube and watch its videos, then you might have noticed that there is an artificial delay
Google slows down Firefox users when watching YouTube…
Invidious and Piped work in the browser, you can combine them with LibRedirect to automatically redirect all YouTube links. LibRedirect is great, you can also use it to redirect other websites, e.g. Twitter -> Nitter, Reddit -> Teddit, etc.
LibreTube is another option for Android. On iOS you can use Yattee with this guide.
Invidious and Piped work in the browser, you can combine them with LibRedirect to automatically redirect all YouTube links. LibRedirect is great, you can also use it to redirect other websites, e.g. Twitter -> Nitter, Reddit -> Teddit, etc.