You can dual mod it. There are ways to make sticks work for both consoles or multiple consoles.
You can also buy boards that do both but they are most definitely not licensed by microsoft or sony if that is the case.
You can also buy sticks that do both. They are definitely not endorsed by microsoft or sony. There is only one brand that does this with sanwa parts (Qanba/Eightarc)
You can hire someone to do it for you in the FGC and take your existing stick and make it work for both consoles.
I do this, there are people in texas who do this. If you need, i can recommend you to someone