Trivial as in it works well sometimes and badly in other times with no explanation for why. That’s my experience anyway.

KDE connect over Bluetooth or WiFi seems ideal for this, so it's definitely possible. I am not sure how the iDevices deal with this, but I really don't want anything cloud-connected.

KDE Connect is more reliable than Continuity Clipboard, in my experience.

so you have your file on a laptop running linux, and its just easy to move the file to your iOS phone?

this doesn't work sometimes. my wife complains frequently

Tailscale drop is better and works across devices.

tail scale drop is much more complicated than literally copying and pasting on iDevice. that's literally all you do, no setup, nothing and this is just one example for one type of action.

https://tailscale.com/kb/1106/taildrop

look at all of that, lol. iDevice is literally copy and paste any file or text. the end - you don't even have to set it up.

How do I copy it from my Mac to my Android?

This sounds like hyperbole. I've never used tailscale, but reading that doc:

Installation: Install the tailscale client

Sharing: Click on the share menu and select tailscale

It's a beta feature so there's also a switch you have to flip for now.

you don't need to believe me. I use it daily. don't know why you're so defensive lol - it's our own opinion. fyi I didn't have to do anything for this to work (clipboard laptop to phone)

Meanwhile, for Apple:

Installation: nothing.

Sharing: Cmd+C/Cmd+V