feat(YouTube): Prevent mix playlists from starting when playing music from feeds

[KobeW50]

Feature description

Context

When playing music or music videos (from anywhere except channel profiles), a mix playlist will be started automatically. I am not sure if this is a/b testing or if it has been rolled out to everyone.

https://github.com/user-attachments/assets/7b6d1600-090f-407d-9720-daf8fd5407b2

Feature

Prevent this mix playlist from starting.

Motivation

In most cases, users just want to watch one or two music videos instead of using YouTube as their music streaming platform and therefore are not interested in the autoplay only playing music instead of regular content. This is similar to why many users hide mixes in the feed.

Additionally, the panel bar at the bottom of the related videos makes it difficult to see videos below the player.

Acknowledgements

• [X] I have checked all open and closed feature requests and this is not a duplicate
• [X] I have chosen an appropriate title.
• [X] All requested information has been provided properly.

[LisoUseInAIKyrios]

I tried and don't see this. Must be an a/b test.

Feature request needs a title.

[KobeW50]

If it helps, here are logs I captured:

~~logcat.txt~~ (redacted)

This screen recording shows what I did:

https://github.com/user-attachments/assets/872d6352-5cbf-4e74-9a35-011bec24f1ec

[LisoUseInAIKyrios]

Logs won't show anything unique if it's an a/b feature flag.

By the way, proto buffer logging includes device IP and other info some might find sensitive. If sharing with it enabled, the log should always manually review and edited or only share specific log lines (unless someone just doesn't care).

Should probably add a confirmation dialog if the user wants to enable buffer logging. Can also add a bit of text explaining the feature is useful for creating new custom filters. Or maybe just add an brief explanation of this to the summary enabled text and have no dialog confirmation.

[oSumAtrIX]

A filter could be added for the floating playlist card at the bottom, autoplay disabled

[koeliga]

Do you have autoplay off? When you have autoplay on and watch a music video it automatically forces the mix, so try it again with autoplay off.

[nozeeeee]

I get this annoying functionality on my new account but not my old account. Same app same device. No idea what's causing it. Both accounts have the "autoplay icon" set to off

[ILoveOpenSourceApplications]

I get this annoying functionality on my new account but not my old account. Same app same device. No idea what's causing it. Both accounts have the "autoplay icon" set to off

You'll probably have to turn Settings > Playback > Autoplay next video to off as well.

[DacoTaco]

I get this annoying functionality on my new account but not my old account. Same app same device. No idea what's causing it. Both accounts have the "autoplay icon" set to off

You'll probably have to turn Settings > Playback > Autoplay next video to off as well.

except thats one of the settings it forcefully enables back on every time you leave the settings menu or select a video, its annoying as HELL...

and im not even logged in on youtube either