The SRR has been supported for display in OpenSea for some time, but as of April 2023, the SRR is not being displayed due to a situation on the OpenSea side. Startbahn has been in contact with OpenSea support in an effort to resolve this issue, but there is no word yet on whether or not this will be resolved or when.
The SRRs are still being displayed on non-OpenSea exchanges (e.g. Rarible) that are compliant with ERC-721.