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Prefer using Pi Zero 1 w than Pi Zero 2 w - recommendation
If you have the choice of using a Pi Zero 1 W or Pi Zero 2 W, go for the Pi Zero 1 W. The problem is the wifi. The Pi Zero 2 generates an interference signal when output via the HDMI, which causes the WiFi to collapse. This occurs from FullHD resolution 60 Hz. The Pi Zero 1 also has the problem, but the wifi still works with FullHD.
https://elinux.org/RPi_Configuration
I set resolution in the config.txt
hdmi_drive=1
hdmi_group=2
hdmi_mode=82
is possible too / works on Pi Zero 1 W
hdmi_drive=1
hdmi_group=1
hdmi_mode=16
On Pi Zero 2 W, the Wi-Fi dies and a kernel panic reboots the Pi. You can proof this by pinging the Pi. With Google you can find many reports of this HDMI/Wi-Fi problem. https://hackaday.com/2019/11/28/raspberry-pi-4-hdmi-is-jamming-its-own-wifi/
I will try with an extra OTG cable and Wi-Fi dongle. Maybe the distance will help.
Monitor Fujitsu B24W-7, Pi Zero 1 / 2 w, FLIRC Case.
When testing with a WiFi dongle, I noticed that the country settings from wpa_supplicant.conf were not adopted. According to this, channel 1 was used, which is mentioned for the problems with HDMI and dying WLAN. I had to set it with iw set reg DE. Now channel 13 is corectly set. The internal WLAN hasn't died since then either.
Could you paste links of the other discussions as reference. I want to put this hint into the Wiki.
Channel 1 is mentioned in the link of post 1, too.
...but the main solution is to use 5GHz instead of 2.4GHz!