Coincidentally, Google is experiencing these reports of outages simultaneously alongside several other high-profile online outages for social media sites. One of the biggest currently occurring involves Meta-affiliated services like Facebook, Instagram, and Threads.
Although judging from the spike in reports on Downdetector, services like Discord, TikTok, Snapchat, and Amazon are facing sporadic difficulties as well. Even entire mobile services like T-Mobile and AT&T are seeing spikes, though this could just be a byproduct of the aforementioned site outages.
At the time of writing, there have not been any further updates on the status of YouTube and its difficulties from Google. Other social media sites have reported that server issues have been resolved, including Meta, though it may take some time before services return to normal for all of the sites reporting outages today.