Bulk Image Importer lets you select image files from your computer and insert them into a Google Sheet in one pass — as anchored images or as true in-cell images that sort and filter with the row — starting at a cell you choose and flowing down a column or across a row.
Available as a Google Workspace add-on for Google Sheets. Open a Sheet, go to Extensions → Add-ons → Get add-ons, and search for "Bulk Image Importer."
Questions or issues: lam.chris.clam@gmail.com