To change the screen resolution of a remote desktop in TeamViewer ... You can only get 2560×1440 if your monitor and drivers are capable of producing that kind of resolution.

As such, even if you never intend to use it for support purposes, Chrome Remote Desktop is a great tool to have around. If you connect to a computer with multiple monitors, you'll see something ...

Other standard features include file sharing, sound support to hear audio on your remote computer, multi-monitor support, ...