We always carry GeoBlue for all international travel. Our previous trips in March, June and November we did not carry extra trip/quarantine insurance. We elected to purchase it for our recent January trip out of an abundance of caution - with Omnicron spreading like wildfire we didn’t want to risk hefty quarantine costs if we tested positive before leaving (and our boat had bookings right after our departure). This was more for our peace of mind than requirements. We were not asked for it at EIS but I hear it is hit or miss with ferry transfers.