I would imagine that given how much they have riding on this - the first big replacement of the MCU after it got up and running - that they will learn from the mistakes of F&TWS. Not only that, but the series did a lot of setting up. Now that it’s out of the way and new Cap and others are established, there’s room to tell a stand alone story.
Are there any details on what story this will have? The scale/threat can’t be that high as he’s just a man in a wing suit, which means lower tier than any avenger bar Hawkeye/Widow. Pepper Potts is higher tier. But at the same time, it’s a Cap movie and it can’t be that weak of a threat or it’s not worth him existing. Maybe an Avengers-lite movie, like Civil War was?