If large % of voters believe conspiracy theories around voter fraud, that's no good and needs to be addressed, even tho I think claims are bonkers. Check the crazed comments on this post about supposed anomalies... https://www.zerohedge.com/political/it-defies-logic-scientist-finds-telltale-signs-election-fraud-after-analyzing-mail-ballot
Even if raw data is good, you don't need anything sinister to explain the "anomalies", just don't assume uniform randomness in when votes from a region are counted and reported.
For instance, MI got a bump in votes for Biden because Wayne county (where heavily democrat Detroit is) reported their results later + in batches. The ZH article notes the step change in MI results as suspicious...
ZH on Michigan results: "both signs of contaminated ballot dumping, and ballot ratios drifting toward dems when they should not be." Geez, no. It's probably just the batches from Wayne county coming in later!
Another plausible factor regarding mail-in ballots: the mail is not a perfect shuffle, and even if it were, mail-in ballots sent to a central location may be grouped by county so they can be cross-referenced against voter registration roles for that county.
Then with some variation in when the different groupings of ballots get counted and reported, you can see lots of variation and little jumps.
As a general rule, anytime you hear about some seemingly weird observation, if you spend 5 minutes thinking about it, you can often come up with lots of plausible explanations that aren't "conspiracy theory".
Conspiracy theory writing has a lot of innuendo, hidden assumptions, and misdirection. And in this case, some charts thrown in to look "science-y" and give legitimacy!
I suspect it's not enough to say "there's no evidence of fraud" and then point to a NY Times article saying so, because the people believing the conspiracy theory (a) discount the "liberal media" and (b) have articles from sources they trust (which are all innuendo)
I think the conspiracy theories will need to be systematically dismantled and explained, like what was done for 9/11 conspiracy theories, to the point where you're considered a wacko if you're propagating them and it doesn't show up mainstream left or right-wing media.