Are you sure this is the right link? I looked at this notice, and compared to the previous version from December 2020 (https://www.terviseamet.ee/sites/default/files/MSO/2020_ohut...) and they appear broadly similar... there's perhaps a bit more upfront on the need to deal with weakly positive results, but they both tell you to read your device IFU and adjust your thresholds accordingly.