Can I connect to Wifi after flashing GSI

My old phone is running Android 10. I wanted to install Android 14 beta on it. Bootloader is locked. From what I know, unlocking bootloader would reset the device. Therefore Wifi passwords are gone. This is ok as I know them. The problem is my router admin has setup something so when using randomized MAC address it doesn't connect. But fron what I Googled, it seems MAC address is hardware based so resetting phone wouldn't change it. So, my question is, does MAC address reset in unlocking bootloader or flashing GSI make me unable to access the network? If possible, please actually try because I don't want to mess up I have no experience in this area.