Search for the chapter
Try a search such as Severance S1E3. When the catalog has that episode, the result points into the series guide. You can also open TV Shows, choose the production and follow Browse the episode guide. A series title is separate from similarly named films or remakes.
Look at the name as well as the number
Season numbering can differ when a service groups specials or splits a season into parts. Compare the episode name and air date, especially when moving from one app to another. Episode titles can reveal a little of the story, so browse only as far ahead as you need.
Remember what you completed
The checkpoint controls on the series page save a season and episode in your browser. Choose the last chapter you finished, not the next one you plan to watch. My List then displays that position clearly. This is a manual reminder rather than an automatic link to an external player's history.
The latest episodes page sorts recorded air dates. It does not promise that every listed episode is already included in every country or subscription. Use your selected viewing service to confirm the exact season before you settle in.