There is intentionally not a lot of public knowledge released on the F-22. All aircraft are constantly retrofitted and upgraded to remain modern and relevant. Huge huge huge amounts of money are spent on this. Hell, the B-52 is still in service today and it was released in 1952. I can't say for certain, but I would be surprised if the F-22's in operation today have as-advanced or more advanced capabilities than the F-35. Just because they are older does not mean they are running older tech. They'll gut the entire cockpit and drop in a new one no problemo.