So, while I recognize the last one was US-backed, do we have any evidence at this point to believe this one was also?

"Zuniga, for his part, said in televised comments that he expected the government to change and that he also intended to release "political prisoners," including the former interim president, Jeanine Anez.” https://www.dw.com/en/bolivia-top-general-arrested-after-coup-attempt-fails/a-69486191

Is that evidence enough?

I mean, the evidence is plain air, but considering 2 incompetent coups in few weeks (DRCongo et Bolivia), you may have to wonder if there's any rhythm to it, yk...