RCS does not use MMS so attachment limits do not apply.
RCS is its own technology. If everyone in a chat uses RCS, SMS and MMS are not used at all. It is like iMessage - but based on an open standard
RCS is its own technology. If everyone in a chat uses RCS, SMS and MMS are not used at all. It is like iMessage - but based on an open standard
The reason there is an attachment limit is because the carriers enforce it in the first place. It isn't a limitation of the MMS standard.
As such, what would stop carriers from enforcing the exact same limitations on RCS?