Yea I wouldn't be surprised! The amount of people that reported back saying they aren't doing as well on Webtoon as Tapas is so few I could count with my fingers.
People tend to take interest in comic, hit subscribe without checking whether said comic is still active or not, and only check back if they have new update! So your view suffered probably just because you weren't actively posting any new update. (Similar thing happened to my secondary comic which I update probably... in every few months/ half a year because I have my hands full with my main comic.)
I do believe so. When a platform has x5, or x10 population, you are most likely to receive x5, x10 recognition, better than other platform even if you aren't being super consistent. I have several friends who grew over thousand and thousand subs just in a span of a few weeks and it isn't strange to see.
On Tapas, after reaching 3k subs, I have been gaining audience very slowly, most often just going in circle, but on Webtoon, you would think having 80k+ subscriber by now my subs gain would be slowing down, but actually every day even without updating my comic, I still gain a steady amount of subcriber!
I'm unsure if it's the algorithm of Webtoon or something else, but the most apparent element is the amount of users Webtoon has daily.