Just do it. Put something like Linux Mint on your Mac. It’ll work fine. And it’s free.

Put Linux on them and give them away to people who need them?

I am a longtime user of Linux and I am pretty normal. All the Linux users I know are also pretty normal. If there’s a Linux user that is not normal, it’s not because of Linux.

To someone who might benefit from dropping Windows for Linux, I would argue that it’s free, it’s much simpler, no one will try to sell you anything, you can let it do software updates in the background and you won’t be abetting genocide. Or billionaires.

Linux Mint.

Actually I don’t need any of those things you mention. It may be a mistake to assume that Linux phones should imitate Google/Apple phones.

Why would “Linux” want to get more users, whatever “Linux” is.

You can also install KDE Plasma on Linux Mint: https://linuxiac.com/how-to-install-kde-plasma-on-linux-mint-22/. My own distro right now is TuxedoOS with KDE Plasma (Can go on any hardware, not just Tuxedo computers) and it works great for me.