Back in the early years of the 21st century, Catholic parishes began to publish in their Sunday bulletins and such that the Catholic Church allowed the faithful of the other Apostolic Churches - the EO, OO, ACOE, and PNCC - to receive the Mysteries of Communion and Penance if they were properly disposed and requested to do so. (Technically, the provision of Canon Law says something to the effect that it is allowed when those of the other Churches are impeded from approaching the clergy of their own Church or something similar, but it was interpreted rather broadly.)
Shortly thereafter, the bulletin text was reworked to where it now says something to the effect that, while the Catholic Church permits this, it encourages those of the other Apostolic Churches to conform to the instructions of their own hierarchs in deciding whether or not they may do so - and for most Orthodox Christians that would preclude them from doing so.
That the practice is not outright rejected by Rome on the basis of the Orthodox rejection of it is probably because of the fact that there are formal and informal pastoral agreements between Rome and a few OO and other Churches that provide for the faithful of each such to receive pastoral care and, particularly, those Mysteries in the counterpart Churches if their own clergy are not available. Such formal agreements exist between: Rome and the ACOE and the Chaldean Catholic Churches; and, between Rome and the Syriac Orthodox and Catholic Churches. There is also a long-standing informal agreement that applies to the Armenian Catholic and Apostolic Churches. At one time, there was a similar informal agreement between Rome and the Coptic Orthodox and Catholic Churches, but that is no longer the case. Few of these pastoral care provisions are ever invoked these days because most of the Churches, Catholic and otherwise, are now adequately represented in the diaspora (which is where they were most commonly invoked) - that wasn't always true.
As well, in the Middle East, because of intermarriage, persecution, etc, there are instances in which intercommunion occurs among Catholic and Orthodox communities.