@Judehill54 nope unfortunatelly no shelters there. There is still a looot of snow up there. You have nothing there except one public toilet, couple of km before Skaidi. Its warm so you can warm up there a bit. In Skaidi there is a restaurant and petrol station that are opened on sunday too! But its about 60 km of nothing so get ready for that.
On the top of the plateu there are some private huts, so if some emergency you can for sure hide somewhere under the stairs or so, but nothing more. I was lucky with sunny day, but only 3°C with head wind so it took me forever to get through….

behind Tromsø there are these shelter Matthew marked in the description of the route but they have hole in the roof for the fire place, so we hid in the public toilet just next to it – not im the toilet haha but there is kind of a waiting room for the bus stop ( on that day I met a german bikepacker so we cycled together that day). It has a floor heating and a electricity for charging devices.

Second day we stayed in a fishing hut next to Alteidet. Its open and there is a link where you can send some money for using it if you want.

If you pass the camping in Alteidet and turn left, after about 1,8 km you arrive at the hut. It has a fire place