Back when I studying web design, my web design teacher once said:
"Different browsers show websites in different ways, so you have to make sure your code works for all web browsers..."
then he went on and compared some HTML & CSS code on the different popular browsers (chrome, safari, firefox, Internet Explorer).
His point was:
"As you see, IE basically shows things the 'wrong' way... But you still have to take accont for it when programming."
Like, when I open ldt.gg in internet explorer VS Chrome.
(Idk if IE still does that, I haven't updated it because I'm using Chrome)
And.. as you've noticed yourself there are also technical bugs with IE .