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Intel doesn’t think that Arm CPUs will make a dent in the laptop market
(arstechnica.com)
This is a most excellent place for technology news and articles.
M2 Max chips are close to the high end i9, but the M series cpus are mobile chips. They're designed for laptops. If competition is a bit harder then no doubt desktop-focused ARM CPUs will match their performance soon.
AFAIK they're large chips though, and larger generally is more performance but also much more expensive to manufacture.