Questions on the moral/ethical implications of installing Linux on my school laptop

So I just managed to install Linux on my school laptop, I would like to preface this with the fact that I plan to return the laptop with the original backup I made on it, and I plan to also not use this for any games, solely schoolwork.

Now, that out of the way, I just installed manjaro Linux onto my school provided laptop. The bloatware the school puts in these is incredibly bogging and I've had stuff flat-out crash for seemingly no reason, and they kept giving me broken laptops. They just gave me this laptop with a broken battery and no bios locks, so I fixed the battery, backed up the og drive, and installed manjaro alongside windows. Everything is working just fine, and I plan to revert the laptop come may 5th.

I feel like I've done something super bad, but I'm a little bit happy I don't have to deal with the slow ass spyware that makes these things unusable, coupled in with windows 11 and this being all around slow, to the point that I would get 100% cpu util on idle, what do you think?