Think we can say it doesn't. Mib2 high doesn't have built in ones. The cartography is Here Maps but whilst they have an attribute for speed camera it doesn't get filled in much. The cameras themselves can be fixed and mobile. It's the mobile ones that get crowdsourced in the likes of Pocket GPS World.
There is a catch with mib3 unlike previous mibs you can't import your own POIs (user POIs) only the built-in ones so whilst speed camera databases could be imported into Mib2 it's not possible with Mib3 unless they have implemented elements of HereWeGo which is their Android app.
https://www.herewego.info/en/here-wego/installation-and-setup/settings/
Leave it up to someone with Mib3 to plunge about in the menus. Basically the weakness with these camera warning systems based on fixed camera they don't pick the mobile ones by definition. Crowdsourced one do. The database in Pocket GPS World basically mark up risk areas where they have been spotted in the past. Those in online systems where someone taps it in bit hit-and-miss.
I'm sure if you have TSR in it, you can set up the beeps if you exceed the speed limit read from the map or from the lane assist camera. That's a much better way of doing it unless you plan to speed illegally between speed cameras where it would warn you each time you exceeded the speed, but you wouldn't know where the camera is. TSR in the
Ateca I find works very well. The new 20mph signs in Wales have been a bit liberally applies so it picks up the side roads, but other than that it works well.
I personally find TSR is better at keeping you within current speed limits than speed camera. They are a nice touch but hit-and-miss. If you are planning on breaking the law using a speed camera database on fixed cameras or wobbly reports, missing one isn't a good idea.