Custom ROM for XZ2 Compact?

I've looked at the newer compact phone models, but haven't really been impressed with some feature downgrades. However, what they do have is a newer/more up-to-date Android version.

So I wonder, would it be a good idea to patch the Sony Xperia XZ2 Compact with a custom ROM to improve its longevity/modernize it? Not sure if sharing links to ROMs is allowed, but do share your thoughts if you had experience doing that