My experience - I've bought a two sim phone this year to use two different physical sim cards. :) Experience of my colleague - he couldn't transfer his esim from old iphone to a new one, due to the unrelated but still unresolved govt. issue. Basically the phone was linked to a certain service, that service has expired/blocked due to inactivity, and without working service esim can't be moved. It's not esim tech fault obviously but if it was a physical sim the issue would be solved in a minute, regardless of the external issues.