shuffle_and_skirmish_website/wp-content/plugins/woocommerce/assets/css/twenty-twenty-one-admin.scss

/**
 * Admin
 */
.wp-admin.woocommerce-admin-page {
	table.wp-list-table {
		tr.type-product {
			td.thumb {
				img {
					max-width: 40px !important;
				}
			}
		}
	}
}