This failed las time i tried, i had to sign in and was no good to anyone, unfortunately i cannot delete posts yet, so let's try;
https://photos.app.goo.gl/OQYY2WxjBCihwd1s2
Well it seems to work for now,
Cormanus, i opened a ggogle pics account,( whilst signed in ) uploaded the picture, which appeared and got full size when i clicked on it, tried to copy and paste from the http thingy ( adress bar ) and failed.
Today i signed in to the account again, and on the top are some symbols, one looks like a " < " with rounded ends, it states" share" and when left clicked it produces a copyable link.
I copied it and pasted it into the post and it seems to work, the link is different from the one in the adress bar, so it could be the public one they use.
For now; cheers max