Recently, Youtube is pushing it's "Shorts"(Short-form video) in it's own section that you cannot remove, which is as addicting as you think it is, aside from that, the signal-to-noise is really favorable for me.
Compared to Twitter, Instagram, I find a lot more value on Youtube. The others I already used blocking extensions to stop me from visiting it. As sad and extreme as that is, it's worked out rather nicely for me. I occasionally need to check something, and circumvent it by going incognito, but mostly the blocking is helping me to redirect myself, and build better restraints, and habits.
[0] https://addons.mozilla.org/en-US/firefox/addon/df-youtube/
The decline in Maps has been the most visible, mostly because it has negatively impacted my commute at times. Google Maps will frequently reroute me through slow, complex side roads and will often completely miss main roads. On routes that I already know, I've stopped following Google's directions altogether because its hilariously off-target.