An App to Copy an Image and Paste It as a File
A free app by a developer who goes by INCHMAN1900 on Gumroad can
provide an easy way to manage images if it fits your workflow. His small
app, FASA
(Forget About Save As), lets you copy images from any source to your
clipboard and then paste them as files in the Finder. You can use this
procedure to quickly export files from the Photos app, skipping the
dialog boxes you normally get. It even works on screenshots that you
copy to the clipboard. The programs preferences let you choose between
jpg and png for your preferred file type. You can start or stop the app
at any time and you can choose programs to exclude from using the
service if you have that need.
If you own a copy of Clop, it also has this ability. You can also do it using the Finder replacement, Qspace.
(Note - There are other things in this world called FASA. This is not affiliated with them. The dev and I both know this 😉)