@sawaba @GossiTheDog ugh, please don't.
Yes it's overhyped, and yes consultants give extremely cringe talks about it, but no, this is neither a purely theoretical threat that can be safely ignored, nor is it business as usual when it comes to upgrading. Unless of course you consider potentially having to rip out the entirety of WebPKI and replacing it with something different as business as usual.
You can see my talk about the practical challenge and the threat model here (about half way through) https://youtu.be/wsnHMvuxy5Q?si=yK6oObpptIQfyOs8