The difference is that markdown is and always has been fundamental to Obsidian and to its core file over app philosophy, and for that reason IMO this feature request is unlikely to ever be implemented. If you consider that a dealbreaker and can’t make your peace with it, you may be happier using another app, as I’ve suggested.
Don’t get me wrong, you have a perfect right to post or support any feature request you like, and I don’t usually respond to requests that don’t appeal to me.
But this one if implemented would have a high risk of compromising or ruining what I and a large number of current users—most likely the majority—love most about Obsidian. So I don’t think it’s unreasonable for me to share my opinion about it as you’ve shared yours.
It’s not up to me to spend time finding alternative apps you might be happier with, but that I wouldn’t want to use. As a start, I suggest asking in the PKM and Notetaking subreddits.
I just know that if I have any formatting issues, the current live preview mode usually enables me to spot them if I run into issues, and if not, I can switch to source mode for an even closer look. But I couldn’t do that if I didn’t know markdown, which is very simple and easy to learn.
I’ve also spent a lot of time helping to answer user questions on the Discord, and I can tell you that even now people ask questions that they could have answered themselves if they had a better understanding of markdown. If they didn’t have to learn markdown to use Obsidian because the codes were completely hidden, it would be worse.