How do I root my Google Pixel to share my VPN connection over a hotspot?

Questions
1

I’m reading that the only way to share my VPN connection over hotspot is to root my Google Pixel. Is this true? If so, is it easy to root and unroot my Pixel?

Does Google Pay and updating my Pixel stop working once my phone is rooted?

Which app is the best and most reliable to share my VPN connection over a hotspot? Are these apps reliable and ensure that there are no data leaks, and that my privacy/security isn’t compromised?

2

At that point I’d recommend getting a mobile router with all connections going through a VPN.

3

Not sure about the stock OS, but unofficial GrapheneOS builds can be rooted.