Thanks for that! Editing the map on a bike can be a hassle though. I tried many options and came to conclusion that a 360° camera on the helmet and a physical Bluetooth button to take audio notes is the easiest possible setup.
[1] https://f-droid.org/packages/de.westnordost.streetcomplete.e...
For example, I will save a waypoint titled "RLPGW" or "RRPGW" to specify at intersections that the road to my left or right is paved and ends in a give-way sign. Or "DWL" or "DWR" for drinking water to my left or to my right, respectively, etc. Then, when I get home, I just connect the Garmin to my laptop and comfortably upload everything using the powerful JOSM editor.