Hi, most modern browsers have a Console/Network panel equivalent.
Firefox network panel, you need to switch to the "params" tab after selecting the beacon call.
"New" Edge, should work just like Chrome, old Edge you can't "filter" as easily, but you can "find" the call, it also had a parameters tab
I don't have a mac, but Safari should also have a network panel (you may need to google how to show developer tools - I think it's hidden by default)
If you have issues with any of the built in tools, or you want to check mobile devices, you can use tools like Fiddler or Charles.
(For mobile devices you need to send the data though your computer as a proxy - https://www.telerik.com/blogs/how-to-capture-ios-traffic-with-fiddler <- this works for Android as well, and since this is old, you will probably need to install the fiddler certificate to your devices to properly decode SSL)