That does depend on where you are. I know people whose WiFi is less stable than the cellular connection where I live generally is, and there are a lot of people with WiFi that's slower than a strong 4G connection. But I agree that it's worth a try.Wi-Fi is much faster than cellular internet, and provides a more stable signal.
I would guess that it's the work profile that's interferingjust found a website that says to disable all locks on my phone to see if it fixes it and then re-enable it. I can't disable all my security. My work profile is installed on the phone and my work profile requires there to be a lock.