The Wikipedia article says that _critics_ of RT regard it as a propaganda outlet... which is not quite what you said.
TBH though, RT has a bunch of Russian-angle propaganda in some of its shows. Those are mostly the shows hosted by actual Russians, or with Russian/living-in-Russia panelists; and their newscasts. Other shows, particularly those by non-Russian journalists/creators, aren't like that. Of course, it is a Russian state entity which selects which people and shows get to be on the network. It seems to me like the main influence on the non-Russian shows is that they refrain from covering or referring to internal Russian affairs and politics.
They've just been fined by the UK broadcasting regulator for systemic and repeated bias in reporting the Novichok poisonings, and withdrawing their broadcast licence was considered.
Russia Today has had multiple journalists resign, citing they could not support their propaganda efforts in good conscience. One journalist resigned on air, apologizing for “whitewashing Putin's action” in downing mh17. Another resigned rather than leave the safety of the US and travel to Russian occupied Crimea. To act like these are commonplace occurrences in journalism strains credulity.