Yep - been happening in various regions for many moons. And they're really pushing to get subscribers to YouTubeTV.
I've pretty much given up on YT, with all the video ads now. And found out that the ads occur whether you're signed in to YT or not, or whether or not you subscribe to YT TV, YT music, YT premium, YT subscription channels, etc. Even ad blockers, etc. can't stop the interruptions and promos. Bugs me when you find a decent DIY video, and the last two minutes have an overlay for more videos, which blocks the video you're watching.
harumph