I agree that the story of the laptop is sketchy. First, it's surprising it was abandoned. The shop owner just happened to have horrible eyesight and couldn't actually identify Biden. Then Biden doesn't collect the laptop, and the owner, rather than wiping it and selling it, eventually gets it to Trump's lawyer?
When the Washington Post finally looked at it, it was pretty tainted, and about the only conclusion you can draw is that there are some authentic emails on it, but that doesn't make the device authentic.
Or even if the device is authentic, every bit of data has to be assiduously validated because there’s known evidence of modifications after it left the repair shop. DKIM signatures did that for some emails but a lot of stuff has no obvious path to validate like that and now the repair shop guy is expressing concern, too:
https://www.washingtonpost.com/politics/2022/04/12/now-warni...
https://www.nytimes.com/2020/10/18/business/media/new-york-p...
https://www.nytimes.com/2020/10/22/us/politics/hunter-biden-...
https://www.washingtonpost.com/politics/2020/10/14/hunter-bi...
https://www.nbcnews.com/politics/national-security/ratcliffe...
https://www.wsj.com/articles/facebook-twitter-limit-sharing-...
https://www.npr.org/2020/10/17/924506867/analysis-questionab...
https://www.washingtonpost.com/politics/hunter-joe-biden-ema...