Technology question connected to YouTube notifications

Anybody knows how to get round this issue on YouTube? I have my notifications on but don’t get any when someone replies or likes a comment I’ve made.

You have them all on here? https://www.youtube.com/account_notifications Like, all those little buttons are blue/to the right?

I don't think you're supposed to get notifications for likes, regardless. Don't think that's an option.

If a like is a weeny red heart, then we are notified.

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