That ending though
The ending kind of gives the impression that the entire plot was a day dream or a fantasy. The entire movie is sandwiched between 2 connected shots, where he's looking out/at the window. The Shadowboxing at the end comes across as aspirational.
This might just have been the best "It was all a dream" movie I've ever seen. The bittersweet life being the life of a Hotel manager, lacking meaning and wishing for something more. In his fantasy he dies, lol imagine how *beep* he feels about his real life.