I had to travel for work around europe. Some countries (norway for example) are very strict, I had border police/military (not sure what they were, but armed to the teeth) checking everything, and others, just seem like they dont care (I had a trip last week where to Denmark,and then back and I didn't show anyone at all my normal passport or covid passport. Just showed ticket and all was good).

So yeah, this shit will never end until countries that aren't dependent on tourism actually start to care about it.