playstore, 3 lines top left, settings, auto update over any network.
when you first set up an android phone it will want you to connect to WiFi before updating the existing apps, either connect or let it go though your 3g/4g/5g connection but be aware of the data used (it adds up fast if you're not on a unlimited plan)
lastly, you can still hit the se 3 lines and go to "my apps" then "update all" or press each individually and allow updating