I bought hobibear barefoot shoes the other day and have been walking in them for the past few days.
The main thing I've noticed is that the soles are thin and you can feel the pavement as well as sticks or anything else on it too which makes it a bit mentally stimulating when I am on my incel walks.
If I've been walking for more than 30 minutes I can feel it in my soles, calves and thighs.
I didn't have to relearn to walk but I don't wear shoes inside my house unlike an American.