I just realised I hadn't actually answered your question. I'd say about 80% of the websites remain usable, to varying degrees. It's hard to say because I'm us

I just realised I hadn't actually answered your question. I'd say about 80% of the websites remain usable, to varying degrees. It's hard to say because I'm used to losing some functionality so I won't bother going to shadertoy for example, so my stats are skewed.