OK, in the interests of - as you say - contributing some useful info to this shared resource, and reversing my own petulance in deleting the link to the beginner's guide I posted above, here is a literal step-by-step guide: https://learnosm.org/en/beginner/start-osm/ that starts with 'open your browser' and gets you as far as editing tags - in your case, surface.
You will then need to read https://wiki.openstreetmap.org/wiki/Key:surface and choose a suitable value. It shouldn't take more than 5 minutes to get this far for someone with a technical background.
You could've just said, create a login, zoom in, click edit, change road type, click save. It definitely wasn't that easy last time I looked. Thanks though, your first link basically said as much and the options for unsealed roads, etc were in dropdowns on the left.
OK, in the interests of - as you say - contributing some useful info to this shared resource, and reversing my own petulance in deleting the link to the beginner's guide I posted above, here is a literal step-by-step guide: https://learnosm.org/en/beginner/start-osm/ that starts with 'open your browser' and gets you as far as editing tags - in your case,
surface
.You will then need to read https://wiki.openstreetmap.org/wiki/Key:surface and choose a suitable value. It shouldn't take more than 5 minutes to get this far for someone with a technical background.