Canada is in the yellow category for EU travel meaning we can visit-- yeah! We are travelling to Greece in October and have read on the Greek Government website that everyone is to fill out a form and then you are asked to press a button which randomly choses people to be pulled over for testing. If you don't get the "test" result you go through immigration and pick up your bags and you are good to go. If you get pulled over to be tested it is done quickly.
That was the process the third week of July, it changes-- ie in June they were putting people up during the short quarantine period they requested. I would advise checking weekly at a minimum for entrance requirements. For eg. we had thought of going to Bermuda then we found out that we had to take our temperatures twice a day (!!) and report the results to the Health Ministry-- GREAT vacation to get away from all this ridiculous over reaction (I am in the medical field).
There are also websites which summarize the entrance procedures. Best is to check regularly.