Yes it is as I use it and all the information is true and if there was false info on the website your account will get banned. Also most of the info is on Transport for Scotland and Highways England.
It is the information on OMS that can be false. This is not 1 of them it is true.

An expressway is a new type of motorway and the A14(M) will be the first one.

Ok I got the road type wrong but SABRE Wiki is the most factual website on the road network. Go to https://www.sabre-roads.org.uk/wiki/index.php?title=A1058(M) and you will see that I’m right.

If it’s more on the ground why can I see the A195(M) and the A14(M). Also on website like Pathetic Motorways and SABRE Wiki can I see the number A1058(M).

Well if you go onto view source you can see it’s a current motorway and if you go onto a website called Pathetic Motorways it also uses the A92(M)