Max,
I did. There’s a great plug-in called FurnaceCore. You can find it here:
https://www.thefoundry.co.uk/products/furnacecore/
You can get a free 15-day trial, and if you want to buy it, I picked it up from motionmedia.com. It was a life saver for me…it got rid of absolutely ALL of the flicker, on static shots, motion shots, multiple light sources, everything. It was really pretty incredible. I tried a couple of other plug-ins, but nothing worked quite as well. Only warning: it requires an incredible amount of render time (you’ll want to use the “use motion” feature in the plug-in settings, otherwise you’ll get nasty artifacts. And you’ll need to adjust some settings in the first place to get it to work). A half hour raw tape told me 7 days to render. So schedule accordingly!! But it does work wonders.
Hope this helps.