Free SAS is absolutely terrible in that regard. I ran a few experiments (at home - when I was still a customer - and at friends') over the years similar to that blog post, and starting 17:00 things get throttled down to death due to clogged pipes. It's almost on the clock. The behaviour is immediately obvious to anyone having some background in network engineering, and support is tone deaf to the issue.
Free will throttle everything from 17:00 to 00:00 and during the week ends these last few weeks.
On the other hand I don't know any other provider who just gives a fixed IP.
SFR does (at least on FTTH) and you also get native IPv6 (not 6rd) and (IIRC) a /48. That is, unless you're subscribed via RED (which I currently am) in which case the IPv6 feature is disabled on the remote end (you can enable it on the NB6 router but it just sits there waiting for the prefix to be announced). On cable the router is different but they're on DOCSIS 3.0 mostly by now and I hear at least some people do get IPv6.
Orange still leases dynamic IPv4, dunno if they enable IPv6 by default now or if it's getting tiered like SFR.
AFAIK it is now enabled by default -- but maybe only on new boxes.
But they leases dynamic ipv6.
Exactly like static v4 if you want a static v6, you have to pay for it.
It didn't really make sense to me why AWS was a target of their bandwidth extortion tactics until I realized Netflix uses AWS.. So I guess thank you Netflix for paying the ransom?