As a password manager user, nothing really changes. As you pointed out, you can use them on any major platform to actually hold your passkeys. The thing is, in

As a password manager user, nothing really changes. As you pointed out, you can use them on any major platform to actually hold your passkeys. The thing is, in the broader scale, password manager use is very low among average consumers. Passkeys are a form of built-in secure password manager for all consumers, without any action needed. This thread is full of different views, and there are also downsides to it, but in this sense, it's a free upgrade in security for the majority of consumers.