The phrase 'through online platforms' is correct and usable in written English.
You can use this phrase when you are discussing the various ways people use the internet or specific websites for various purposes. For example, "Many people now use online platforms to buy groceries or order takeout."
No longer are filmmakers beholden to the gatekeepers of television, but through online platforms they can democratise the process.
Equity crowdfunding involves raising funds through small investments from a large number of people through online platforms.
As recent figures show, there has been a significant increase in companies sourcing freelancers through online platforms.
Crowd workers tend to be young, according to Huws, who says a third of those aged between 25 and 34 have sought work through online platforms.
Finally, a generation that has grown up on these technologies is increasingly comfortable learning and interacting with professors through online platforms.
That emerges from the first in-depth study into the number of "crowd workers", people who are paid for work through online platforms such as Uber, Upwork and Taskrabbit.
Prof Ursula Huws of the University of Hertfordshire says that 5 million people are being paid through these online platforms, with more than 3 million of them regularly engaged in various forms of crowd work.
It's the sort of thing that would have never been possible through traditional linear TV, but is enabled through an online platform like Netflix.
Nor did they have online platforms through which to release and promote their music, and to quickly amass big audiences.
Berlin began restricting private property rentals through Airbnb and similar online platforms on Sunday, threatening hefty fines in an attempt to keep housing affordable for local people.
There are countless examples, from comedian Bo Burnham to indie duo Pomplamoose, of undiscovered creatives coming into prominence through canny use of online platforms.
