How difficult was is to move socio-economically or physically off the farm in medieval society as a serf?

by PowderyDonut

Time period 600 C.E. - 1200 C.E. Western Europe: Spain, Italy, France, Holy Roman Empire, British isles.

Searocksandtrees

hi! lots of room for more contributions on this topic, but meanwhile catch up with previous responses in these related threads

How often was upward mobility available to serfs and villeins around Norman times?

Could a medieval peasant or serf move to middle or upper class? If so, how?