It really is wild how a company can be so massive yet unable to do basic UI. I got a notification that someone replied to a YouTube comment I made so I clicked the notification and it opened up YouTube's landing page. I tried to find notifications and couldn't so instead I tried to find a page that has my comment history.

I had to look it up and apparently you can't even find it on YouTube, you have to go to a separate website, my activity.google.com.