No actually. The link above, Apple themselves suggest you can increase font size of a few apps by going into the preferences of those apps. Orion lacks those preferences to increase interface font. It should be a mandatroy setting. I highly discourage strict adherence to "native macOS app" standards. You need to make Orion do things other browsers do. Not a matter of opinion. You MUST if you want users to use it. If that means doing more than what a native app would do than so be it.
And really, like who is going to zoom in while using the browser just to be able to see text? It's ridiculous. The text of Orion UI is tiny by any standards. Most displays are high DPI now. Just increase the text size then if no option will be made.