There is literally a non power of 2 option in unity for when it has to round the pixels because power of 2 literally doesn't matter, of course everyone still does power of 2 textures just out of good habit and practice, and it does guarantee that the mipmaps won't have weird errors at certain viewing distances with weird rounding, if it's even visible at all when rounded.

Like my god, you people are retards. It's simple shit you can lookup with a google search, do you parrot retard shit without verifying your information with google? Holy fuck.