This t-shirt was exclusively made for the Naughty Dog Devs. There is a white variant which was given to booth visitors at E3 2019.

Both variants of T-shirts are hard to come by. I was extremely lucky as few ex ND/Blizzard employee was selling them at reasonable price.

Does Bokeh Have It?

Yes

How hard was it to get?

Relatively hard to find them. But the prices are ok.