No COLOR scans as of Mint Linux 21.3 (Virginia)
This post is more in the way of an FYI. "Document Scanner" scans only in Black and White color recently. As the Windows 10 partition HP software scans in color, on the same laptop, the issue must be with this app. As there is very little way to configure for color or black and white in the app, I'm reporting this more as an FYI than as something you need to look at. Still I think it is better to let the developer/s know. The MFC machine is an HP 8010 series. Specifically an 8015e model. Thank you for reading this.