I share my profile for walking.
In contrast to the profile 'shortest' it disadvantages big streets and prefers paths and footways.
I would be happy to get feedback or improvements.
And a noticed a technical problem: by starting the costfactor term with:
assign costfactor
add switch foot 1 1.1
and then continue to add at least another "1", your costfactor is at least 2. But for efficient calculation, the costfactor should be close to 1 for the type of way you are looking for, otherwise the processing times for large distances go up.