Can it run on systems without OpenGL?

[probonopd]

FreeBSD% runappimage Desktop/appimagepool-x86_64.AppImage 
appimagepool            appimagepool.svg        usr
appimagepool.desktop    AppRun

(appimagepool:4902): Gtk-WARNING **: 22:20:54.183: Locale not supported by C library.
        Using the fallback 'C' locale.
Gtk-Message: 22:20:54.183: Failed to load module "appmenu-gtk-module"
Gtk-Message: 22:20:54.226: Failed to load module "appmenu-gtk-module"
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast

** (appimagepool:4902): WARNING **: 22:20:54.350: Failed to start Flutter renderer: Unable to create a GL context

[Prateek Sunal]

We don't have any control over the core level, report at official flutter sdk for issues without OpenGL.