While the idea was interesting (see other climbing games like Cairn, Juasant or Peak) I feel the execution, in essence, made stamina management completely trivial. You can just hold down space to ascend and the anchors will replenish your stamina the moment you touch them (which is right as they are placed). Maybe if the player had to touch the ground, or another anchor first, it would have added a little more challenge. I think it would also be more fun and challenging, and realistic, if the player didn't move so smooth like they had a jetpack, but in shorter or longer jumps (giving player choice and more risk/reward).
2 more things I noticed, is there supposed to be a win state trigger at the bench, because if there is, it didn't work for me, leaving some initial confusion. Lastly, if you just keep holding space while crossing the top, you can just keep climbing infinitely into the sky.