General
TheInventory
filter provides means to look for products with specific stock amount either per product or per each single variant.

Out of stock
checkbox is self-explanatory, filters out products with exactly zero stock, it works for products with continue selling turned off only.
Stock
field you can choose a stock number and find products with higher or lower stock per total/variant stock.
Exclude continue selling products
excludes any variant if it has continue selling checked, this helps stores search exclusively for products with tracked stock.
Total Inventory
Relating to stock of the product, if there are multiple variants then stock is summed.Exclude continue selling products
Can’t check since exclude continue selling is per variant.