I noticed this the last lock down as well, and it seems to be the same this time around. Now that the network traffic has reduced considerably the Go Safe vans are much more prevalent on the still relatively busy motorways. Not only more prevalent, but also in places that would not be the usual haunt. Fish/Barrel/Quotas come to mind.
Go Safe Vans are far less visible during the hours of dark, especially placed in dark areas just after a lit up section due to eyes getting used to darkness again and the light absorption quality of the Go Safe Van paint.
This morning around 06:30 on the M7 just passed the Birdhill junction going to Dublin was a Go Safe Van. I passed at a 130 km ph cruise control setting, 124 km ph GPS and I was passed the van before seeing it.
I'd say it's borderline whether I get a ticket, but the purpose of this is to highlight the significantly greater Go Safe vans on the motor ways.
There was another Go-Safe Van nearer to Dublin and you could hardly miss it.
So, what I'm saying is... don't be a fish