You were wrong in fact, but perhaps less so in substance. And certainly in comparison.
The Russian interference in both elections was found to be fairly minor and generalized. It is widely agreed by neutral sources that it had little impact and what impact it might have had would likely have been to push people in directions they were already going.
For example:
https://fivethirtyeight.com/features/how-much-did-russian-interference-affect-the-2016-election/
https://www.washingtonpost.com/politics/2023/01/09/russian-trolls-twitter-had-little-influence-2016-voters/
In short, the 'interference' was things like POSSIBLY orchastrating the timing of the wikileaks documents. But - those were REAL documents, the info was real. Russians frequently reinforced negative impressions of Clinton and strongly promoted them, but they were based in real things the Clintons had done or were accused of. And the effect was minimal. They did it in a broad way rather than a particularly targeted way and while it certainly will have had some effect it almost certainly made no difference in the election
In the Canadian case, the Chinese out and out lied to Canadian Chinese voters and spread disinformation in a very organized fashion targeting vulnerable ridings. And according to the CSIS reports, they were successful in turning a few ridings with their efforts - in other words there are more liberal seats and fewer CPC seats right now directly because of their efforts. The Richmond riding in greater vancouver is an example.
So - it would be relatively accurate to say the Russians did not interfere effectively in US campaigns while the Chinese absolutely did in Canadian ones.