I have a team account and would like to share the edited source files with my team member. How do I do that? Lightroom or Lightroom Classic?
In Lightroom desktop, you can create a Group album and share it with your team using an invite link. Please checkout this article for more details: https://helpx.adobe.com/lightroom-cc/using/save-share-photos.html#GroupAlbum
that only allows to share jpgs. How about edited raws?
No it doesn't allow just jpegs only.....you are always sharing whatever file-type that you have uploaded to the cloud. There are some restrictions related to exporting images from a shared album, but that depends upon who the owner of the album is. If you own the album and one of your team members contributes some files to that shared album, you as owner get full access to those contributed files, including the ability to export then in the original file format. But if the team member owns the album which is shared with you, you can only export in jpeg format (though you'd be viewing the original format file).....but if you contribute some of your images to that album, the team member (being the owner) can export in the original file format.
Note, this Group Album feature is only possible using the Lightroom cloud-based apps (there is no longer anything called "CC"). It's not available using Classic, though ordinary album sharing is still supported there.
In Classic it is possible to highlight the images you want to share with your team member and then choose the option to export as catalog. Be sure to choose the option to include the negative files. This option will create a package that you can give to the team member that will include a catalog containing the adjustments you have made as well as the raw files.