Ahaha, yeah!
I can totally get how the format can be very weird on the creator side! Well, a creator coming from the page format (covers mouth)

But from the readers' perspective, it is suuuuuuper intuitive.
Webtoons restricts users from zooming in on their panels in their mobile versions. So size consistency is of utmost importance! :O

Also, gutter spacing is essential, to substitute for the slow-pacing effect that the page format can utilize in large large panels!

You could look at Webtoons' tips on getting used to creating in their style here (https://www.webtoons.com/en/tiptoon/lozolz/webtoon-editing-tips/viewer?title_no=1268&episode_no=24).

Or if you don't really care any more, you could just simply enjoy their comics :P (I like at least these ones :

1. My Giant Nerd Boyfriend: https://www.webtoons.com/en/slice-of-life/my-giant-nerd-boyfriend/list?title_no=958
2. Let's Play: https://www.webtoons.com/en/romance/letsplay/list?title_no=1218

Regardless, I know I will continue reading Kickman ;)