Problem with Save As. Only shows PSD, PSB, or Tiff

I had the same problem.

.psb is used for large files. It turned out that I had created something that was probably 1140 inches wide instead of 1140 pixels, as intended. When I resized it, the option to save as .psd returned.

Really sad I'm looking for another software for my workflow.

After all those years.

It's astounding to me how Adobe progressively makes Photoshop a worse experience. Switching to alternatives soon due to these shenanigans.

Adobe changed Photoshop file menu Save As operation. Photoshop menu file Save As interface no longer support saving layered documents as Photoshop PDF or image file formats that do not support Photoshop Layers. A document that just contains a background layer can be save as a Jpeg using "Save As".  To use Photoshop's document saveAs function to save file types not available in "Save As" s you need to other Photoshop interfaces like "Save a Copy" that is a new menu File "Save a Copy" interface. Other Old Photoshop interfaces like Export As, Export Save for web and Photoshop Scripting these interfaces still support Document saveAs to save those file formats from layered Photoshop documents. Adobe only removed that support from Photoshop menu Save AS interface. Adobe also added menu File "Save a Copy" interface you can use to save those files. So use the interface that works best in your new Photoshop work flow.  I use Windows I do not need to work like an Apple user.

CTRL+ALT+S is the solution they suggest in the "Info" button under the "Save a Copy..." button
for decades i've hit CTRL SHFT S. i guess they decided to change it?? *shrug*

Adobe made an incompatible change to Photoshop in 22.4. That brakes batch actions that use save as to save flat file from layer documents. The change also changes you editing work flow you have the adapt your work for to the change.  Adobe removed the feature they added to save as  years ago that enable Save As to save flat image file types from layer documents.

It  is back to the old days for those old action they need to flatten before save as can save can save flat image formats in Photoshop 22.4. The actions can back up in history to recover the layers they were forced to flatten.  If you are a fool and only use Photoshop 22.4  you can change the actions from Save As to Save a Copy... which is new in Photoshop 22.4  and can do what Save As could do in Prior Photoshop version save a flat image file format from a layered document.  You an not force to flatten then recover you layers. The action will not work in old Photoshop versions they do not have a Save a Copy the can use Save As in old Photoshop versions and don't have to] flatten.

Just to add to D Fosse's comprehensive explanation, you don't have to go through the separate flattening steps, you can go straight to Save A Copy in the file menu. This saves the flattened version as a copy in a format such as jpeg, and still lets you go on to use Save As to save the layered version in a format that supports layers etc, such as PSD or similar.

Dave

The Save As dialog now only shows formats that support all the current properties of the file.

This was done to circumvent an unresolvable policy change in MacOS Catalina. Since Apple didn't want to change it, Adobe had to find a way to work around it.

Actually, this just reverts to how Photoshop originally worked. If you, for instance, wanted to save a layered file as jpeg, you simply couldn't - for the simple reason it's not allowed in the jpeg specification. You had to get rid of all the offending properties before you could save.

The ability to directly save a jpeg-copy-on-the-fly was introduced sometime around CS4. But with Catalina, that function didn't work properly anymore (as evidenced by about a million threads over the last year or so), hence this necessary change.