EU countries have been incredibly incompetent in their handling of covid. What you're saying about expecting to travel freely is just copium. Pretty much all EU leadership should be fired and possibly prosecuted. I'm European myself btw.
I am all for firing EU leadership. But my reasons are probably different to yours. EU style of lockdown was stupid in more than one way. Like prohibition of open air sporting events well into summer of 2020. And then repeating it in 2021. Stay at home and get fat, so you don't catch Covid type of messaging. Completely mishandled public relations in some countries, etc. Ever changing vaccination rules with ever changing validity of Covid greenpass. My greenpass is valid in Slo, but not valid in Ita since January, etc.
I don't know what copium is supposed to mean. However freedom of movement is one of the basic principles of EU. Or at least it used to be.