apt update
Hit:1 http://security.debian.org/debian-security buster/updates InRelease
Hit:2 http://deb.debian.org/debian buster InRelease                                                 
Hit:3 http://deb.anydesk.com all InRelease                                                          
Hit:4 http://deb.debian.org/debian buster-updates InRelease                                         
Hit:5 https://download.virtualbox.org/virtualbox/debian buster InRelease      
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.

apt search firmware-linux
Sorting... Done
Full Text Search... Done
firmware-linux-free/stable,now 3.4 all [installed,automatic]
  Binary firmware for various drivers in the Linux kernel