What if Intel bought Arm?

Early this week I was asked what I thought about Nvidia buying Arm, it seems an almost foregone conclusion by the web that it would since Bloomberg and the Financial Times presumably independently confirmed the courtship. In an earlier editorial, I responded to the question with I think it's a brilliant move if it can pass all the government agencies that seem to have a say (EU, US, China). There are concerns expressed that Nvidia's competitors would be alarmed and maybe move to RISC-V (which Nvidia also has a stake in) but that would be stupid and Nvidia is no