HELP PLZ. Is it possible to play from different launchers?

hello,I was interested in the question of different platforms, can I play ea app in pvz gw 2 with a friend, but he plays through steam, I asked gpt, he said no, but I decided to ask the community. And is it possible to transfer all the content from ea app to steam, specifically from pvz gw 2?(I have a lot of stuff there, and it's a hassle to start over)