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Change YouTube logo link to user's subscription feed instead of homepage, when logged in, for 2017 and later YouTube layout.
< Youtube Logo - Link to subscriptions feedについてのフィードバック
Attention to all; script now fixed (had to wait until next Youtube event)
Cheers!
Stopped working, probably related to Youtube Rewind event
I've also taken the liberty of inspecting the DOM. [screenshot included]