How many of you use Firejail on your Linux system or do you find that it's not necessary? Do you use something else besides FJ like bubblewrap?
That depends on your threat scenario. Yes, Apparmor with apparmor.d. But your distro must be supported. And I recommend against the latter of you're not familiar with the AppArmor basics. Which distro are you using?
I am on Mint 22.1 (host and VM's) and my use case involves always using VM's for workspace. Conveniently most malware will shut itself down completely after it detects a VM environment, and that is instantly. If not and I get a cootie it is a few seconds to restore a snapshot. At least that is how I approach the subject.