S rank Shiyu Defense 7 in a week as 100% F2P player with proof - ZZZ (ps5)

Yeah, in about 2 days I leveled another team to 40 based on my Soldier 11 f2p roll to do this content, not well-equipped as my first team that took 4 days or so, but very playable.
I think Zenless Zone Zero is very free-to-play friendly and you really don't need to spend any money to do all the content, just don't expect to level as fast as a pay-to-win player/streamer.
At 5:45 you can see the proof that I never bought anything in this game.
After I played a lot of Warframe in the distant past, I never thought that I would like another free game, even less one with a mobile version, but here I am, loving again, lol.