Hmm, I'm not very well-versed with what's going on with the Gates Foundation. But at least, Gates Foundation seems to be involved in other things besides vaccines, unlike the profit-driven big pharma.

Dr. Rushworth (discussed in this article) is the one who noticed the conflict of interest behind the Columbian RCT. But Dr. Rushworth also mentioned that the Gates Foundation-funded RCT seems promising.

https://sebastianrushworth.com/2021/05/09/update-on-ivermectin-for-covid-19/

Moreover, I think the most important thing is that the RCT will be well conducted, and we will know when the results are published.