Can we call list folder api under team space root and meanwhile filtering out the personal folder?

The API doesn't offer an option exactly like that, but I'll pass this along as a feature request. I can't promise if or when that might be implemented though.

The closest option currently is 'include_mounted_folders: false' (since member folders are mounted in the context of the team space), but that would also exclude other types of mounted folders. That also only excludes the contents under those folders, but would still list the entry for the folder itself.