There have been several finals when the competing teams were from the same country and the game was played abroad. Chelsea v rags in Moscow, Juve v Milan at the swamp, Real Madrid v Valencia (in France?) and Real v Atletico in Milan. And there was the nonsense of Chelsea v Arsenal 6,000 miles away in Baku in the Europa final a few years ago.
The only fans UEFA give a stuff about are those who watch on telly. They also care about spreading the UEFA brand to grounds in obscure UEFA member nations. Prestigious finals can mean votes, and cynics might say bribes.
Covid changed things last season and should change things this season, but it will be a long way down on UEFA's priority list. I'd like to think all those MPs who were so vocal about the super league will be demanding UEFA shift the game to somewhere local; Hampden would be my choice as I've never been there, but I doubt they will.
The situation could be even sillier if Arsenal qualify so they and the rags also have to travel abroad for the Thursday League final.