Realtek never upstreams their WiFi drivers. MediaTek chips are good MT7601U MT7610U and MT7921AU which are all plug and play.
For I2C, see the libretech-wiring-tool page on this hub. It tells you how to enable and which pins.
All of our kernels are the same across all images so if it works on one, it will work on all. If it doesn’t work on one, it doesn’t work on all. There is no need to check every image. This only applies for images on our distro server. Other images released by third party may be different.