CPU UPGRADE HELP

So imma be upgrading from a ryzen 3 3100 4-core to a ryzen 5 5500 6-core. Ive never upgraded before but i need to do it for streaming. I keep seeing i need to do a bios update but i have no clue what that means😭💀 if anyone could help me out id rlly apprt it! Really an entire walkthrough of upgrading would be great i dont necessarily know what to look on for it on yt