There is an interesting utility out there for Windows 11/10 called ZipLock, and it is designed to compress your files. Not only that, but you can use it to backup and secure your files on a USB stick.
Not too long ago, opening a zip file on an iPhone or iPad was impossible without using a third-party app, but that’s no longer the case. It’s actually really easy, so long as you’re on at least iOS 11 ...