Just to piggyback onto what @JAMES4578 has shared, @DanielWestbrook, it is difficult to say with absolute certainty whether any phone would be good for seven years.
Your A52s is very capable and comes with three years of Android OS upgrades, and four years of security updates. You have that reassurance.
However, it does depend on your use case and how you use your phone. If you, for instance, intended to retain your phone for another five years, you will need to keep it in optimal condition:
I just point this out for balance, of course. Additionally, you'd likely need to pay to have your battery replaced after a number of years. The guide below provides some great tips about getting the most out of your battery and how to spot when it needs to be replaced, as this will ensure that you get to use your phone for as long as expected:
https://www.samsung.com/uk/support/galaxy-battery/about-battery/
You can arrange a battery replacement via the self-service repair here:
https://www.samsung.com/uk/support/repair/
Most standard apps tend to be compatible with phones and tablets over a number of years. However, if an app developer introduces a particularly cutting-edge feature down the line, it is feasible that the app (or game) will not run optimally on your phone.
Just for completeness, if you're keeping your phone for a long period of time, it's likely you'll have amassed a lot of data (and memories!), so it's always worthwhile ensuring that you regularly back up your important files:
https://www.samsung.com/uk/support/mobile-devices/backing-up-and-restoring-data-on-my-galaxy/
It might be worth taking a "wait and see" approach. It's definitely not unprecedented to keep a phone for a few years or even longer (if you can resist the temptation of the array of amazing releases within that timeframe!), so you could just see how you get on year-on-year.
