They also have a brief explainer video: https://www.youtube.com/watch?v=DGpjeyypKMU&feature=emb_logo
I'm not going to call this a nefarious conspiracy, but in the same way you might wonder about a study funded by Coca Cola, LEAP doesn't sound like they'd want to fund a study concluding "eating beef is much healthier than soy protein"
If you combine that with the original criticism about the poor study design, you can come to your own conclusions about whether to reduce your meat consumption.
I'm not sure whether Wellcome has a similar real or perceived conflict of interest. I did think it was interesting that they showed a lower instance of Afib and varicose veins across the meat eaters...
https://www.gatesfoundation.org/How-We-Work/Quick-Links/Gran...
If Bill Gates was that desperate to control what you eat, I'd suggest he could find more effective ways than funding completed unrelated work specifically at the Wellcome Trust starting a decade ago, in the hope that one day he could use his connections to pressure them to give a modest amount of their own money to a study that will likely not have any major impact politically.
This looks to me like a desperate attempt to find an agenda where there isn't one, verging on constituency theory terrain.
Funding
This work was supported by the Wellcome Trust, Our Planet Our Health (Livestock, Environment and People - LEAP) [grant number 205212/Z/16/Z]; Cancer Research UK [grant numbers C8211/A19170 and C8211/A29017]; and the UK Medical Research Council [grant number MR/M012190/1]. AP-C is supported by a Cancer Research UK Population Research Fellowship [grant number C60192/A28516] and by the World Cancer Research Fund (WCRF UK), as part of the WCRF International grant programme [grant number 2019/1953].