Software update
Please my phone software hasn’t been updating since 3 weeks now and many of my apps can’t download and install SOFTWARE UPDATES
iPhone 8 Plus, iOS 14
If your tag line is correct and you own an iPhone 8, which is still on iOS 14, you have skipped a couple years worth of updates, so your best bet is to use your computer to update your iPhone to the highest level iOS version it can support, which for an iPhone 8 is iOS 16.7.7 If you need the most current iOS 17.4.1 your iPhone is not capable of being updated to iOS 17.
See how to use your computer to update here --> Update your iPhone, iPad, or iPod touch with iTunes - Apple Support