Are Proxy Servers Supported in the Linux Version of Edge?

I can't find proxy server settings in edge. Online advice says to go to "Advanced Settings" in "settings" but there is no "Advanced Settings" in the linux version. The search box in Settings returns no info about proxy server settings. This is "Version 126.0.2592.87 (Official build) (64-bit)".

Any ideas? Is this capability removed from edge?