No it hasn't.
If the research had been published and peer-reviewed, it would suggest that if you follow another cyclist, 2 metres wouldn't be enough, and you should reposition yourself not to be consistently downstream of someone for a long bike ride.
However, none of us are doing group cycling with people outside our household anyway.
www.vice.com/en_us/article/v74az9/the-viral-study-about-runners-spreading-coronavirus-is-not-actually-a-study
Here are some quotes
Belgian researchers chose to bypass all standard science publishing protocols to publish research that has been overhyped and isn't well understood.
“People should read and not misread my tweets and texts,” Bert Blocken of Eindhoven University of Technology, the lead researcher on the simulation, wrote in an email to Motherboard. “I have never and nowhere discouraged people from walking, running, or cycling. Rather the opposite. Maybe people should read more, and react less.”
Blocken has yet to publish a peer-reviewed paper about the simulation. In fact, he hasn't even published a non-peer-reviewed study. Instead, he spoke to a reporter in Belgium about it, whowrote a news article, which has now been aggregated and shared widely by many publications. Given what Blocken has put into the world, taken at face value, some people are understandably concluding that it is impossible to run or cycle safely in many cities; he recommends a distance of 65 feet between bikers and other people, something that is impossible to do in cities. The issue with Blocken’s suggestion that we “read more, and react less” is that there is almost nothing to read, and there is no study to critique.
Blocken’s team took the extraordinary step of speaking to the media about his research before publishing anything about it. There is no written study to read or interpret. We do not know the specifics about how the study was done or how the simulation was run because the research team has not shared that information.