They've been losing marketshare to ARM for years. For cloud infrastructure servers (where the big bucks are) I know Amazon has been making a huge push towards ARM-based processors since the late 2010s — they offer them cheaper than servers with equivalent Intel chips, and in some cases they have better performance too, which is a major incentive for companies to switch. (Every company I've worked at has had a project to switch to the ARM-based servers.) Google just announced their own ARM-based processors for their cloud platform this year, and Microsoft has been offering them for a couple years too.
Part of it is that it's easier for these companies to customize (and manufacture?) their own ARM-based chipsets, which means they can offer them for a lower price vs Intel
They've been losing marketshare to ARM for years. For cloud infrastructure servers (where the big bucks are) I know Amazon has been making a huge push towards ARM-based processors since the late 2010s — they offer them cheaper than servers with equivalent Intel chips, and in some cases they have better performance too, which is a major incentive for companies to switch. (Every company I've worked at has had a project to switch to the ARM-based servers.) Google just announced their own ARM-based processors for their cloud platform this year, and Microsoft has been offering them for a couple years too.
Part of it is that it's easier for these companies to customize (and manufacture?) their own ARM-based chipsets, which means they can offer them for a lower price vs Intel