I hate Tenet for being a puzzle instead of being a movie. And I love this game for being a better Tenet. This is just a crazy good idea and implementation. It's pure, with no excessive mechanics, and it works perfectly.
I find it a little annoying that eventually all puzzles are about waiting in the right place then waiting somewhere else. And it's quite hard to wrap a head around sometimes. I could propose a system that leaves trails or marks behind a character, so once you inverse it, you know where it will be in the next 5 seconds or so. Or at least give a visual clock or a timeline player can refer to when waiting. If also leaving marks on the timeline for events like "pressed button" or "picked a stone" it would help a lot. Nonetheless, game is great, gameplay is brilliant, visuals are cool, nice!