I do not like this kind of rumors. Rumors born out of the fact that it is very likely that Canon will release a given lens (or gear). It’s the case with the Canon RF 35mm f/1.2L lens for the EOS R system.
There is no doubt this lens will come to EOS R system, sooner or later. So why not start a rumor? Says the source of the rumor:
[it had been] reported that it would be announced in 2021, and then in 2022, and now we are told that the lens has been pushed back to 2023. We’re not exactly sure why the lens has been pushed back, but I think that we can assume as to why, and we’re tired of typing the reasons!
I guess the reasons are the usual supply chain issues, mother of all issues. So, after having been rumors for 2021 (with a certain confidence), now the Canon RF 35mm f/1.2L is a 2023 affair. See here all Canon RF 35mm f/1.2L rumors listed since their beginning. There is also a patent referring to the lens.