Peace lily (Spathiphyllum ) does look similar to Chinese evergreen (Aglaonema) since both are in the arum family. According to sources, peace lily doesn’t have trunk or cane while Chinese evergreen is a shrubby type. The specimen in the picture above has numerous visible canes. I’m still leaning toward perhaps the green form of Chinese evergreen (Aglaonema modestum). Best wishes!

Peace lily

Maybe something in the Chinese evergreen genus (Aglaonema)? Possible the A. modestum? When it flowers and you still uncertain, please resubmit with photo of flowers. Copy & paste the included link below for more information and see if you have a match. Best wishes!

https://aggie-horticulture.tamu.edu/databases/interiorscape/Aglaonema_modestum.html