I could probably lazy-load the videos, if that's what's causing it, but despite all the videos and images the page is only 1.2MB. Can't figure out what would cause that :/

I had the same exact effect on my Pixel 3a. Happened 3 times in a row.

What phone/browser are you using? Works ok on my Moto G5 with Firefox which does have problems crashing/reset on some websites but not sure why.