TBH I usually wouldn't recommend one vendor over another when it comes to motherboards because realistically nobody spends much time in the BIOS anyway, I'd just suggest the one that has the features you actually want but as the other comment pointed out Asus has been pretty crappy with customer repairs and warranty stuff so it might be worth spending a little bit more in case you do have an issue down the line but that's completely up to you, I have no idea if Gigabyte is better to deal with than Asus, but I do remember they had issues with exploding PSUs before lol

Asus Warranty and Repair Issues: https://www.youtube.com/watch?v=7pMrssIrKcY&t=0

https://www.youtube.com/watch?v=I3DwhTc7Z4o&t=0

https://www.youtube.com/watch?v=uYdtpU8FKO8&t=0

Asus issues related to AM5 https://www.youtube.com/watch?v=cbGfc-JBxlY&t=0

Gigabyte's Exploding PSUs https://www.youtube.com/watch?v=aACtT_rzToI&t=0