Does anyone know what the situation regarding entering and leaving Gib at the moment pleaseThanks

you can check by the minute on their cameras and there is a phone number to call to hear the expected queueing time...

Lately it has not been too bad although last Monday and Wednesday there were exit queues of up to 2 hours in the evening.

Arrive after 9 and leave before 5 appears to be the best advice at the moment.
But be aware that the situation can change rapidly.

Inbound queue not the best camera angle:-
Webcam - Alcaidesa Marina - Marinas in Andalucia, Marinas in the Straits of Gibraltar, Marinas in Costa del Sol

Outbound queue:-
http://www.frontierqueue.gi/split-view-cam.aspx