I went into Project Hail Mary knowing nothing beyond it was from the author of The Martian. It may have been the most enjoyable reading experience I've ever had.
I'm in the back third of Project Hail Mary now. Same. I went into it blind and it's great. I did have to take a break in the very beginning just because dealing with my own existential crisis was enough that I didn't need a fictional one ... lol?
Artemis was good too.