L3 hosting and UniFi is now unfortunately just one of the many, many areas where it feels like Ubiquiti just kind of quit on it many years ago. It's really unfortunate but I've really gotten that sinking feeling about the platform for the last year or two now, with their killing of the forums and no replacement/upgrade for the bug/feature tracking part being the final straw. But overall they seem to show a lot of the…
They're definitely ignoring a big part of their market that made them successful initially. Do you think there's a potential for disruption in this market?
Yes absolutely, and UniFi itself provides a template and easy window because the hardware is now so dated. A similar management system but properly extended with solid certificate management and support, nice RADIUS, better L3/L2 (L3 master, L2 hardware fallback), friendly VLAN, gateway device that can actually handle stuff like Pihole, friendly WireGuard backing and usage, and hardware in general that moves forward towards >1G would be very interesting to a lot of people currently on UniFi but beginning to feel the winds of obsolescence blowing. Specific selling point of zero-cloud tie-in (beyond if you yourself want to run it on a cloud service), controller in container or VM standard. Have something (like algo and many others do) to generate mobile profiles, or offer hooks to MDMs or both for ease of deployment.
As far as I know there isn't really anything that does a nice job of putting all this stuff together, despite it arguably being something foundational that more and more people should be doing. Using Let's Encrypt, good automatic cert usage should be trivial. VLANs and VPN are something everyone with IOT should be thinking about. Etc. None of this is radical new technology, just quality implementations and a good GUI bringing together existing stuff, and with zero remote service reqs beyond the optional signing authority (and it should support just running your own root, let the appliance have a USB to make use of HSMs like a Yubikey too). I mean, I'd be delighted if there was no opening here because there is someone else already doing all this like UBNT was working towards too before the current state of affairs, but as far as I know there isn't. Higher end stuff in the market isn't that friendly, you need to be a real expert, the low end integrated stuff is the long standing shit show and/or a bunch of totally standalone components, and "smart" integrated stuff is all cloud sub.