According to ChatGPT:
It’s worth noting that sideloading can come with risks. When you download an app from the Google Play Store, Apple App Store, or similar, there’s a level of vetting that goes into ensuring those apps are safe to use. When sideloading, you lose that safety net and open up the possibility of installing malicious software. As such, it’s recommended that users only sideload apps from trusted sources.
Translation: Please don’t do anything outside proper channels and authorized services.