Right. iOS was very feature-anaemic for its first 6-ish years. I switched to the iPhone in 2011 after being a faithful PocketPC/Windows Mobile user for more than a decade - but I had to jailbreak my iPhones to get the system tweaks from Cydia that I felt I really needed - things like a Today screen, AdBlock, raw file system access for exchanging files with my PC (and for getting
my data out of oppressively siloed applications, etc.)
Since iOS 8 the system has had most of that functionality baked-in or is officially supported by Apple’s APIs for third-party devs. The only real things I feel I’m missing out right now on iOS 14 is raw FS access and easy sideloading.