I can recommend iCloud email, it starts at $1/month and also includes cloud storage if you want to use that for some reason. It does have a website so you can technically use it without any Apple devices as long as you make an account, and it also allows catch-all emails. I use Cloudflare for Nameservers and it automatically connected and added email records

He's younger than the first iPhone lol

If you use a third party app that can play directly, like Infuse, or your CPU has Intel QuickSync, then you'll likely be fine. For security cameras unless you need any sort of facial recognition or object detection just a CPU will still be fine. If you need anything more advanced then a GPU is necessary

What exactly does this do? Youtube-DL's a video and then lets you watch it?

All fun and games until you're on a restricted network where even OpenVPN is blocked

Whats the provider? Also, unless your friend is paying for it, why not check out something like Oracle Cloud's Always Free Tier?

App Switcher and then quitting an app

I only pay for iCloud+ for mail

I use 3 Deco X60s in a single family and it works great. Since your ISP should support 300MBPS, that may solve the problem if you already have ethernet run between those rooms since otherwise they will use WiFi to communicate

Fast is less accurate than Speedtest

Edge cause I use it on mac