I have always used some adblocker or the other, so honestly have seen only about a dozen ads on YT over the past decade.
However, despite still using uBlock Origin, Revanced, SmartTube, I switched to a shared Premium subscription with a new account as it is a common account in the family and means no one else is subjected to YT ads.
Also Google is shifting features server side like the higher 1080p option for videos or being able to watch videos for songs within the YT Music app. Also noticed some videos struggling for playback on SmartTube which work fine in the official app, indicating Google is actively trying to fight adblocking on every platform.
Of course, spending ₹1/day for premium is palatable but if the pricing goes crazy, then probably will have no reason to even purchase Premium.