Android

Official:

DeArrow supports https://m.youtube.com

This can be used with Firefox. You can then install it directly from the Firefox Add-ons store like normal (No collections are needed anymore).

It's also possible to use it on a chromium browser, such as Kiwi Browser, from the Chrome Extensions Store, but Kiwi Browser is not recommended.

3rd-Party Apps:

• LibreTube is an Android client for Piped
• Clipious is an Android client for Invidious
• Revanced partially-supports thumbnails only (Missing support for original thumbnail votes)