ofcourse they are official they are WHQL signed by Realtek and Microsoft if you mean did Gigabyte release them? no no they didnt but that doesnt mean a thing Gigabyte just log in to the Realtek FTP server every couple of months grab the latest release from realtek and provide it to end users they dont actually do anything anything that passes the WHQL signing is by its definition official each file is chrypttogaphicly signed to verify its 100% unchanged hence WHQL hence who cares where it came from
WHQL signed by Realtek i think not. Don´t install Microsoft spy malware drivers install only the drivers you can get by the manufacturing firm. WikiLeaks, Snowden and plenty others have this released. Microsoft 8.0 Windows through Windows 12, Android, Apple, Intel INSIDE is spyware and malware from the start. ps: Kind regards from NSA, DSI, Mossad, CIA, FBI, DGSE, FSB, SIS, Interpol, MI6, CSIS, ASIS. (All allied belligerent states from the First Worldwar and the Second Worldwar fighting against the free states form the axis powers.)
Your hilarious all drivers are signed by Realtek and Microsoft You need to run Linux to be away from them Its Microsoft's os if you want them to work with windows microsoft must WQHL sign them oh wait the NSA added SELINUX to Linux years ago I guess your done for they are into Linux also I 100% presume the us gov has a backdoor into windows but i can tell you 100% its at a lower level than a driver dumbo
If you are specific about your hardware then use corresponding UAD driver like asrock, gigabyte versions of erpsterm / shonk or you can use generic UAD from PAL releases. If you don't want to move from HDA driver, then do nothing.