The phrase "a widely discussed topic" is correct and usable in written English.
It can be used when referring to a subject that has garnered significant attention and conversation among people or in media.
Example: "Climate change has become a widely discussed topic in recent years, prompting debates and discussions across various platforms."
Alternatives: "a frequently debated issue" or "a commonly talked-about subject".
"STEM learning" may be a widely discussed topic within education and children's media, but the discussion doesn't necessarily make it easier to determine which products help teach STEM concepts.
The safety of New York streets has been a widely discussed topic of late — in conversations both bracing and absurd.
Despite the issue of Asian under-representation within the national game being a widely discussed topic, the situation has changed little over the years.
A widely discussed topic at the Bangkok conference was the development of microbicides in the form of gels, creams, or other substances that could be applied vaginally to reduce the risk of the transmission of HIV and other sexually transmitted infections.
Princeton's involvement in concussion research stems largely from Putukian, who said that she took an interest in mild traumatic brain injury early in her career after encountering a few challenging cases while working at Penn State, long before concussion became a widely discussed topic outside the sports-medicine community.
JPEG2000 encryption has become a widely discussed topic and quite a number of contributions have been made.
6 Frailty is a widely discussed subject in developed countries and many studies have been published on this topic.
In the last few years QFT has become a more widely discussed topic in philosophy of science, with questions ranging from methodology and semantics to ontology.
Let's not kid ourselves, as Mark Brown writes, the most widely discussed topic of all has been the inhospitable weather.
Music is the most widely discussed topic on Twitter, and seven of the top 10 accounts are those of pop stars like Katy Perry, who has the No. 1 Twitter account with nearly 52 million followers.
Throughout 2014, the internet of things (IoT) was undeniably one of the most popular and widely discussed topics in our industry.
