[archi42]

No, if you're looking for strict FOSS ideology, they're probably not what you want ;-) It's all enterprise grade: Proprietary hardware (they have some ASIC for security processing, probably helped with GPs issues) and you only get software updates as long as you're on a support contract.

OTOH I know a lot of people who are pretty happy with them, but that might relate to the fact that I recently started at a company selling them (among other brands). What impressed me most was the well executed "single pane of glass" integration of the first deployment I saw; all switches could be easily managed from the FortiGate web interface. Compared to that the Unifi Manager feels like a chaotic hack job from the 90s.

(To be fair, at home I still use Unifi APs and the switches are based on bang-for-buck: The 8P GBe 2P SFP+ Mikrotik in the study and the 24P GBe PoE 4P SFP+ Aruba as a "core" in the basement [that is, once it arrives, for now an ancient Netgear switch has core switching duty], Firewall is a loaned FortiGate, which I will probably replace with an OPNSense when I have to return it -- I'd go all FortiNet if the basement switch alone wouldn't cost about as much as my PC, though).