This is when you need an HDMI switch, a splitter, or both

A splitter allows a single peripheral to output to multiple displays.

3 HDMI Cable Myths You Need To Stop Believing

The most common HDMI cable myths to stop believing are that expensive and gold plated cables are better, and that the length ...
TweakTown

Switch 2 does not support VRR while docked, Nintendo confirms

TL;DR: Nintendo officially confirmed the Switch 2 supports Variable Refresh Rate (VRR) only in handheld mode, not while docked. Despite earlier website claims, VRR on TVs is unsupported due to ...
PC World

HDMI 2.2 vs. DisplayPort 2.1b: The future of display connectors, explained

For high-performance TVs and monitors, there are two main cable types that you need to know about: HDMI and DisplayPort. (What about USB-C and Thunderbolt cables? They both implement DisplayPort, so ...