Coming to Obsidian from text editors like Sublime or VS Code, a customary feature that might do well in Obsidian is the ability to split the selection into lines. This feature is also called multiple selections etc.
Use case or problem
User has pasted in several lines of similar text. Perhaps the lines all contain something similar that needs to be edited out or revised. Perhaps the lines need to be all formatted as a list.
With a command and a keyboard shortcut, the user can select the group of lines and then “split” the selection so that there is one cursor on each of the lines. The cursors can be moved along the lines to make similar additions or deletions to each. This can all be done from the keyboard, faster than using a find/replace (and specifically only within the selected lines).
Current workaround (optional)
copy the selection to a new file, then run find/replace, or manually edit each line.