Since 2017 in Linux 4.12 has been the Realtek rtl8723bs WiFi driver where it was introduced into the staging area and remains there nearly a decade later. The rtl8723bs driver for this Realtek 802.11n WiFi SDIO driver has seen a lot of code cleaning over the years and all these years later still is needing lots of code clean-ups from unnecessary code abstractions to dealing with malicious WiFi APs for what Greg Kroah-Hartman has called a "beast of a driver". The latest twist is there now being patches for adding Realtek RTL8723BS and RTL8723B onto the existing RTW88 driver...