Not sure about every Brand, but got confirmation from MSI - that they dropped support for all systems up-to Intel 11th Gen - despite being labeled as officially supported by Microsoft. They'll offer updates only for 12th Gen and above (and AMD equivalent) - and claimed we should count on Microsoft alone for certificate updates.
The elephant in the room - is the huge trillions of $ profit - which corporate OEMs and Microsoft is hopping to gain from this vulnerability, so... wouldn't be surprised - if one of this brands are actually the ones who engineered and spread this known vulnerabilities (taking into account - how much they have to gain). Even tho, Microsoft is still updating the certificates on their end. I mean, older tech is still good enough - for most people and A.I. didn't become as trendy on a consumer level as they would like, so.... the desperation - driving them into making a immoral move like that seems quite likely - while aiming to clean their stocks of 12th gen based systems and anything released after. Not to mention - the A.I. Ram BS which made the RAM so overpriced. So, now they can even sell those systems at a far higher price - compared to times when RAM prices were stable.
But again, MSI made this public this month - so don't know about every brand.
