This functionality is already completely implemented in core Obsidian.
In global search, type two double quotes "" to search for empty string. This matches every file in a vault.
“Portion of the vault” is vague specification but maybe “path:” search operator is what you are looking for.
Sorting by creation/modification date can be done by ↑↓ icon above search input box.
There are also icons to modify amount of displayed content or to copy sorted list of filenames into clipboard.
In order to use it as additional plugin which does not require to close another opened list of search results, consider supporting request Allow Multiple search panes at the same time
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