I don't know if this has been reported yet, I couldn't find it when searching for VE reports related to linking.
When using wikilinks and then formatting them, the VE will always pipe them, even if this is not required, e.g.
[[Link|''Link'']] instead of ''[[Link]]''
That seems unnecessary and on en-wiki a bot runs to fix those errors, which seems counterproductive. Instead, the VE should be able to determine whether the whole link is formatted and then just apply to formatting outside the [[ ]].