Temporarily disconnect from home Wi-Fi? On an iPhone, is there a way to temporarily disconnect from my home Wi-Fi without having to “Forget This Network”?

Why I need this:


My home Wi-Fi sometimes has a very slow Internet connection.
Meanwhile, my 4G always has a strong Internet connection.
In those cases, I would like to:


disconnect my phone from my home Wi-Fi,
activate the phone's wireless hotspot,
use this hotspot to connect my PC to the Internet, via the 4G connection.
I'll make my comment into an answer.

For your particular situation, you don't need to temporarily disconnect from home Wi-Fi.

When you realise that the Wi-Fi doesn't work properly and you want to switch to 4G it's only necessary to start the personal hotspot from settings.