I found the reason! Try and see if you have "include bleed" checked for "export for screens"!
If so, the "export as" also includes the bleed.

Very frustrating when exporting PWA splash screens that shall be in the same size as in Apple Guidelines.

Similar to my issue: https://illustrator.uservoice.com/forums/601447-illustrator-desktop-bugs/suggestions/45946477-export-artboards-occasionally-exports-bleed

Most of the time, Export As > Use Artboards works as intended, but occasionally it exports the bleed area around the artboard. The workaround is to duplicate the artboard and replace the original with the duplicate, which then works although the artboard settings were exactly the same so I shouldn't have had to do this. Seems to happen more or solely on my personal PC running Windows 11, vs my work PC running Windows 10, both running up-to-date Adobe CC Illustrator. Possibly similar to but not identical to an older report: https://illustrator.uservoice.com/forums/601447-illustrator-desktop-bugs/suggestions/41891674-export-as-use-artboards-not-working

Add a checkmark next to "use artboard" that gives the option "export with bleed"

When working with an Illustrator file that uses bleed settings, in my case the artboard is 11.75" x 3.75" with 0.125" bleeds, when I export out as a PNG and select 'Use Artboards' I'm expecting the resulting PNG file to exclude the bleed settings ... it does not, why? In a previous Illustrator version, I remember this option working as expected.

In regards to the resulting PNG, how do I prevent the exported PNG file to have '-01' appended to the filename? It is irritating that I have to manually rename files after export.

Also, if I 'Save a copy' as a PDF the 'Use Artboards' isn't selectable, why? How is it that someone can save an Illustrator file to a PDF, for someone else to review, and not include the bleeds if the 'Use Artboards' isn't selectable ... assuming that 'Use Artboards' works correctly (one may have to deselect the feature to keep editable in Illustrator if the bleeds aren't kept)?

Is 'Use Artboards' known to be buggy at the moment?

A

Please fix this!
Used to have an option in the export dialog box.
I need to export my labels to wrap in Adobe Dimension w/o the bleed I set in Illustrator for printing purposes.

it is not only pngs but anything you export. If you have a picture over the artboard and it is not over the entire bleed setting you get white lines down the bleed area as well.

Todd, the point of bleeds is so when we send the files to the printer, the color will bleed over so they can be ganged up on the large format printers. This enables the printers to have a variable width and height in case the paper expands.

Without the bleeds, we wait for money because the printers have to reprint until they look perfect. So doing as you say means we got to set up two different documents for every document we need to go to a printer or put it out on the web.

If document is setup with bleed (red box around artboard), then bleed will be exported as part of PNG. If you remove the bleed settings, then artwork will be correctly cropped to the artboard.

I can confirm this is happening to me as well. VERY FRUSTRATING!

When you export png from document with bleed, even if you select the "use artboard" option, the png files have bleed included.

Adobe 22.0.1 - Mac