Yes, it depends which kind of age gap. Like @schittwriter says it right, a 30 yo dating a 50 yo is different than a 15 yo dating a 20 yo (or older).
You have to remember there are 13 yo on this app. I try to avoid taboos like that in my stories and for me the thought of a high school teen having a relationship with a 30 yo is gross.
I am writing a fantasy-story at the moment about the MC (51 yo) having a relationship with the LI (35 yo). That’s a nice age gap and relationship in my opinion. Both are adults and have a history independent and together.
Age gap is fine for me as reader, as long as it’s not a minor with an adult.