Obviously I don't know your life and how much your livelihood might depend on it, but if it impacts your decision any, I think you should at least start dabbling in it. You can look at any rough edges you need to smooth over as investing in the ecosystem and, for any added effort that's still too much to justify, drop any requirement for parity. Simple stylized graphics never go out of fashion, and the hardware crisis (which I think will last closer to a decade or more than a couple years) means the market will be even slower than usual to adopt the visual quality Unreal pushes for anyway.
