The “without being signed in” part of YouTube is now no longer completely true. I tried to watch a video tutorial at work the other day and it wouldn’t play because I wasn’t signed in and so “they couldn’t be sure I wasn’t a bot”. I’m not signing into any personal stuff on my work computer, or wasting time creating a “work” Google account, so I guess YT can no longer be a place where I can get helpful programming info.
Saying “Oh boy” in the way you would say “Oh my” or “Oh wow” is not gendered in the sense that you aren’t calling anyone around you “boy”, but rather saying it to yourself as an exclamation; just like how religious people say “Oh God!” or “Oh my God!”; if you said “Oh God”, you wouldn’t be calling the other person “God”.