When I have changed fuel filters (cars, mowers, etc. - not on a generator fyi) , I have done it simply by undoing the clamps (using the right tool for doing that) at each end of the filter. Have used something to catch spilled fuel, some rags for cleanup, etc. Can be messy, but controllable.
That is what access panels are for - a lot easier than pulling the whole generator.
'99 VW EVC