You can game on anything modern and decent. That's not a question. The question is exactly what are your planned software needs for the editing? That'll determine the hardware needs. Some programs and work can require 32-64Gb of ram, some only need 16Gb. Some cpus need to be high core count or higher clock speed or high IPC. Some editing is mostly gpu work, so a more budget cpu is fine but a monster gpu is recommended. Some programs just work so much better/faster/fully on a Quadro card and aren't really supported by Rx/gtx/rtx cards.
Get the editing hardware sorted and gaming will be easy to adjust, the other way around makes life more difficult.