I met Linus at the Linux BOF at the 1994 Boston USENIX. Very ironically, I have Linus to thank for a long career using FreeBSD. It sounds like a cheap shot, but please hear me out:
I was sysadmin'ing a university stats department at the time, and NFS use was very important. I had been trying to use Linux on 486's, but performance of xdvi (with NFS mounted fonts) was abysmal. A 486 would take minutes to render the same page that a wimpy DECStation could render in a second. From tcpdump, I figured out it was because Linux did not do any sort of NFS caching at the time, and xdvi wandered around font files one byte at a time.
I asked Linus at the BOF when they planned to implement NFS. He told me NFS was unimportant, nobody used it, and so on.
I then attended the FreeBSD BOF where a clean shaven guy in a collared shirt was giving a power point presentation. I asked about NFS there, and was told it should work fine. When I got home from the conference, I switched the 486 to FreeBSD, and it worked just fine.
I eventually did OS research on FreeBSD, was one of a few people to port FreeBSD to the DEC Alpha, and I now do kernel performance work for a large CDN, where we run FreeBSD.
Sorry to spoil the party, but Mull browser and Mullvad browser are two different beasts. Mull browser is for Android by the DivestOS person, and Mullvad browser is based on Tor browser by the Swedish Mullvad VPN company.