The difference is "acid cure" vs "neutral cure"
RTV silicones use a few different, but related, cure chemistries. The most common one is what's called an "acetoxy" or "acid" cure, which releases acetic acid as it cures. This explains both the vinegar odor, and why you want to avoid this chemistry for electronics applications, where said acetic acid will corrode copper parts.
The second one is what's called an "alkoxy cure". These release methanol, ethanol, or isopropanol as they cure, and are a type of "neutral cure" silicone. This means they don't have the corrosion risks associated with acid cure silicone products, and are suitable for electronics applications.
However, they have some cost and performance disadvantages in applications where acetic acid corrosion is a non-issue, so they are relatively uncommon formulations nowadays.
As a result, most "neutral cure" RTV silicones available on the consumer market these days use a different cure chemistry, a so-called "oxime" cure that releases a funky chemical called methyl ethyl ketoxime during the cure process. This is not an acid, and thus doesn't pose quite the same risks of corrosion that an acid cure product poses, but may not be acceptable for critical applications because any potential influence MEKO might have on copper corrosion is not as well known.
TL;DR: for non-critical applications, any consumer neutral cure RTV product is acceptable -- just avoid products that don't say "Neutral Cure" on the label, and you'll be fine.