It's not "sideloading". It is "installing". Just installing the software you want, on the device you own. I am not "sideloading" applications on Windows, either. I download and install them. And before the internet, you got your software on CDs or floppies and ... installed them. This is nothing new. The term "sideloading" somehow implies you are circumventing or side stepping some mechanisms or protections in a non-sanctioned / nefarious manner. I am not. I just install software on my phone.