For those pixel (may be all android ?) users wanting a super easy way..
Make the meme, but before clicking generate, swipe to screenshot. You will get the android "do you want just the image" box which keys you copy/save without the watermark
Android is made by Google, but if you change small parts of it, it has no connections to it. Especially because they develop many parts as proprietary addons onto AOSP (Android open source project) like that strange screenshot crop thing. So no google apps = no tracking often.
GrapheneOS changes a lot of the underlying stuff to degoogle too, but thats not that much.