When you start trading multiple firsts, the protections start to get difficult. In most scenarios you will end up doing no protections on the picks themselves.
ie. If I trade you a 2022 top 4 protected pick, what happens if I get a top 4 pick? Well, it just moves to the next tradable pick right? If I traded you my 2023 pick as a swap though, it can't be that. If I traded you my 2024 pick, well woops, I owe you that pick already. So what happens to it? Usually it turns into two seconds or something like that. Well then the value of that pick is not as high because I could always tank next year and keep my pick and just send you two later seconds.
Protecting the swaps is probably okay. In this scenario, if you wanted to trade 4 picks with protections, it would probably go something like this:
2022 1st Unprotected
2023 Swap (You can protect this however you want, since 2022 is unprotected)
2024 1st Unprotected
2025 Swap (You can protect this however you want, since 2024 is unprotected)
Like I said, it's tricky. If you protect 2024, you have to get Philly to agree to move that pick to 2026 if they don't get it. That may be a harder sell.