Steps to reproduce:
Open any PDF file from the web (e.g. This textbook). Press the download button once the document is loaded. The file is named document.pdf.
Expected behavior:
The filename should match the original, for the example this should be LeeSeshia_DigitalV2_2.pdf.
Orion, OS version; hardware type:
Version 0.99.124-beta (WebKit 616.1.10)
(macOS Ventura 13.3.1 build 22E772610a) (Mac minia)