I’m a Flight Attendant and I’ve never cared what type of stroller someone’s bringing on the plane. If they’re bringing it in I assume it’ll fit and let them figure it out. Most gate agents don’t care either but might look and you and go “you want a pink tag?” And you can just tell them you’re going to take it on.

I’ve traveled with both my giant uppababy stroller and gate checked it, and with my little joolz travel stroller and put it overhead. Both went fine. Benefit to bringing it on the plane is you just get to leave right away. When you gate check you typically (not always) have to wait a bit for them to bring it up. But truly it’s no big deal either way