You are insulting Canon Rumors now, you know?
They had major specs long time before the first teaser from Canon.
Canon dropped the first teaser as a "side-note" at a announcement of Cinema stuff. And then dropped a few more details a couple of times before full announcement. But major specs like 8K video (including. RAW video, though CR didn't really believe it themselves and removed it again from their early posts) was out (rumored/leaked) long before that. Unusual long time before actually.
What?!? Questioning the overlords of our beloved forum on what they have written and to justify and/or measure the effectiveness of the rumours?
Of course, CR were privy to information that they didn't or weren't allowed to share publicly so this is only from the external forum perspective.
Bored today so:
Ok... let's fact check another one in the OP
"As you all know, the EOS R6 was announced in July of 2020, shortly after the
EOS R5 and was refreshed in November of 2022. Originally the
EOS R5 and EOS R6 were to be announced on the same day, but things were a bit messy at that time globally."
=> The R5 and R6 were announced on the same day (9-July 2020) but were available in July/August respectively.
A blockbuster of an announcement with 2 bodies, 2 extenders, battery grip, 4 lenses and a printer! Let's hope that Canon does something similar soon as it has been really quiet lately.
https://www.usa.canon.com/newsroom/2020/20200709-camera
This is ~5 months after the development announcement on 13-Feb and of course during the beginning of the pandemic.
Canon was giving us direct information a year before development announcement:
9-Jan-2019 Canon confirms 8K capable EOS R camera in development
It is entirely likely that Canon deliberately dropped rumours of the new body prior to the development announcement on 13-Feb-2020 to keep the existing base waiting. They don't need to do that now as the migration path to RF lenses is clear with a raft of options (including unique ones), 10+ R bodies and mostly good accessories.
30-Sep-2019 Canon is gearing up for a big 2020 [CR2]
"We have been told that Canon has a major announcement planned on or around February 11, 2020, which would come ahead of CP+, which begins at the end of February... We expect both the high-megapixel EOS R body and EOS-1D X Mark III to be announced in the first half of 2020, along with a lot of new RF mount lenses."
14-Oct-2019 The Canon EOS 5D Mark V is in the works [CR2]
21-Oct-2019 “Pro” EOS R camera coming in March 2020? [CR0]
24-Oct-2019 Canon [Execs] again mentions a Pro EOS R body, with IBIS and dual card slots
4-Dec-2019 Rumoured Canon EOS Rs Specifications [CR1] => 75mp with same joystick as 1DXiii
9-Dec-2019 Canon EOS R Mark II in testing [CR2]
5-Jan-2020 EOS R related announcements coming for CP+ [CR2]
11-Jan-2020 Potential Canon EOS R Mark II specifications [CR1] => 32mp
13-Jan-2020 Two new EOS R bodies coming in the first half of 2020 [CR3]
20-Jan-2020 Major Canon announcements in February and May of this year [CR2]
21-Jan-2029 Canon will release four new full-frame cameras in 2020 [CR2]
28-Jan-2020 Canon EOS RS Specifications? [CR1] => gets very close to R5 specs
28-Jan-2020 Canon EOS R5 Specifications => gets is almost correct (removes "raw" from 8k)
29-Jan-2020 Canon EOS R6 specifications [CR3] => first time mentioning the R6
30-Jan-2020 Canon financials includes their comment "Although we have launched two full-frame mirrorless cameras as well as ten dedicated lenses, our lineup is still insufficient.
In order to recover from our late entry into the mirrorless camera market, we have plans to launch a model that incorporates a newly developed image sensor and image-processing engine that offer even more advanced features."
12-Feb-2020 Why aren’t there more Canon EOS R5 leaks? => "Update: I have heard from a few people since this post, and apparently Canon Rumors has caused some stress at a few Canon subsidiaries"
13-Feb-2020, Canon has development announcement of the R5 and 9 lenses in 2020 including the RF100-500 and extenders.
https://global.canon/en/news/2020/20200213.html
There were major leaks of R5 specifications before announcement date on 9-July-2020