Can microcenter update BIOS?

Since Microcenter is preemptively updating bios on many in-store motherboards, that might negate the need to avoid any b450/x470 boards without Bios Flashback, opening a whole section of motherboards people previously might not have considered.

Is it safe to update motherboard BIOS?

In general, you shouldn’t need to update your BIOS that often. Installing (or “flashing”) a new BIOS is more dangerous than updating a simple Windows program, and if something goes wrong during the process, you could end up bricking your computer.