Steps to reproduce:
Clicking the "Download" button for a PDF on JSTOR (https://www.jstor.org/) just reloads the page rather than downloading. The problem persists in compatibility mode. Safari does not have this problem.
On Safari, after an interstitial agreement clickthrough, a new window opens with the PDF.
Orion, OS version; hardware type:
Orion Version 0.99.115-beta (WebKit 614.1.12)
macOS Monterey 12.4
MacBook Pro (15-inch, 2019)