
There are plenty of websites with this info. Of the websites I looked at, this was the most succinct and easy to follow.
may not always be the best or fastest way around ;) but it is MY way around

There are plenty of websites with this info. Of the websites I looked at, this was the most succinct and easy to follow.
The Flixbus app says this about travelling in general:

This about the specifics of travelling on their busses:

And more specifically this about Sweden:

Right.
Time to read the rules.

As of recently 27th June 2021) Sweden is no longer on the list of countries needing quarantine on entry or return.
Whee!