This works for me.. if your browser supports private tabs/windows
Have one (not private) tab/window open logged into YouTube (subscriptions is a good choice) and another (private) tab/window not logged into YouTube.
In the (not private) tab/window, copy the link of a video you want to see.
Move to the (private) tab/window, paste the link there and it'll play fine. The adblocking (by uBO or AdGuard or ...) should still happen in private tabs/windows so all the usual YT ads are still removed. All browsers should work the same.