Provided this isn't an OEM version of the AC3168, yes, you should be able to upgrade to the AX9260. Personally, however, I would be replacing it with an AX200 (WiFi6) or an AX210 (WiFi6e) card.
Hope this helps,
If I may interrupt here, the best practice for your query is to consult the motherboard manufacturer and check if the ac9260 is listed on the wireless cards compatibility list, as well as steps for the proper installation of the wireless card. Not all systems are capable and compatible to work with all wireless cards, and only the system manufacturers will have more control and understanding of their system capability.
I hope you find this information useful.
Intel Customer Support Technician
I hope you are doing fine.
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Intel Customer Support Technician.