Odysee accused Rumble of generating fake traffic https://archive.ph/aBukJ. In response, Rumble sent a letter to Odysee, threatening to sue if they don't remove the tweet https://archive.ph/jOQCo

Odysee removed the tweet, but then left this snarky non-apology https://archive.vn/TLQdA

Pretending to have higher engagement by falsely boosting numbers in order to to retain and increase customers is a tactic that has been used by some social media companies during their critical early period. I'm not convinced by Odysee's very limited evidence that Rumble has been doing this however, and Rumble would be in significant legal trouble if it was caught lying, since it is acquiring external funding.