Finally saw it. Add me to the list of those who felt it was a tragic ending for Loki. I’m an introvert and if I were locked to a throne all alone for eternity, I’d go insane. I can’t imagine what it would be like for Loki, whose very essence is tied to getting reactions out of others.
Is he alone, though? He has the whole multiverse in his hands. He is basically the new Watcher. All-powerful but won't/can't interfere.