As far as I can tell ROKU has come nowhere near addressing the issue of the Qanon channel (called Burrow). I haven't heard of any follow up from them.
The Burrow channel is 100% misinformation. Why does no one check content on a Roku channel?
As per Media Matters: Streaming platform Roku has allowed a channel dedicated to QAnon conspiracy theories...All of this content seems to violate Roku’s own rules, which prohibit content “contain false, irrelevant or misleading information.”