There's something off with the new jump behavior introduced in the newest Counter-Strike 2 update. It personally feels much better pre-update.
After the update, I wasn't hitting the jumps I used to be able to, so I set "sv_legacy_jump" to "true" to restore the legacy jump behavior, and the movement instantly felt so much better and consistent. Suddenly I was able to hit all the jumps once again.
I recommend that you test it yourself (especially on Mirage, since it's a very movement-dependent map).