The 2022/23 UEFA season will see the following teams from Scandinavia

Champions League: F.C. Copenhagen is the only participant from Scandinavia, in Group G with Manchester City, Sevilla and Borussia Dortmund.
Europa League: FK Bodø/Glimt is in Group A with Arsenal, PSV Eindhoven, FC Zurich; HJK Helsinki is in Group B with AS Roma, Ludogorets and Real Betis; Malmö FF is in Group D with Braga, Union Berlin, Union Gilloise; FC Midtylland is in Group F with Lazio, Feyenoord and Sturm Graz.
Europa Conference League: Silkeborg IF is in Group B with West Ham, Anderlecht and Fornal Club FCSB; Molde FK and Djurgårdens IF are in Group F with Shamrock Rovers and KAA Gent
To sum up, it’s 8 teams: 3 Danish (F.C. Copenhagen, FC Midtylland, Silkeborg IF); 2 Norwegian (FK Bodø/Glimt, Molde FK); 2 Swedish (Malmö FF, Djurgårdens IF); 1 Finnish (HJK Helsinki).