“I know that Amazon is out of many jigsaws and whilst looking for other sources I came across this. Who knew such websites existed?  I’m trying a David Hockney puzzle.  It feels pretty much like doing a real one.  You have all the bits on your screen, and you slide them round with your finger. Easy.”
Do you know about our neighbour from Kings Heath, ‘Cold War Steve’? If not you can find out about him here  and also visit his website. His two jigsaws, available from his website, will keep you busy for a very long time!
Have you thought of contacting neighbours and swapping jigsaws or board games? If you have no other options, then you can always try and put a jigsaw together face down.