Using DT4b2, whenever I capture using the share dialog, DT4 always creates a bookmark the first time round, regardless of the Format selected (Markdown, for example). Once created, if I repeat the operation a markdown (in this instance) is created.
This is just for notification purposes and bug tracking.
I try to avoid installing extensions unless absolutely necessary. I much prefer the share sheet. Plus, this is in Safari and I don’t see an extension for DT
For infos, this was not a problem in DT3 - and still not, if I run DT3 instead of DT4b2. So there is clearly a difference.