>Chrome apparently has a flag And even then the options were confusing: 'Enabled' and 'Enabled available in settings' I first tried with Enabled, didn't work.

>Chrome apparently has a flag And even then the options were confusing: 'Enabled' and 'Enabled available in settings' I first tried with Enabled, didn't work. Then tried the settings option, which showed reader mode option under 'Appearance'. After turning on this setting, the icon shows up.