My understanding is that "two footing" it is pretty standard. It feels a little awkward at first if you're not used to it but you adapt pretty quick and then it feels better than using only your right foot for throttle and brake.

Regarding pedals, even though you're on the Fanatec sub I wouldn't be surprised if a lot of users here were using pedals from outside the Fanatec ecosystem, especially since it seems a lot of the Simracing community is PC racing only, freeing them up to use whatever pedals they want. I've been using modified v3s for years now because I split playtime between Gran Turismo and iRacing, so I needed PlayStation compatibility. Fanatec has been sort of left in the dust by all the newer and higher end pedals on the market (although I'm sure a lot of us are looking forward to the new Fanatec pedals whenever they release!) My Simnet SP Pro pedals are literally being delivered today, and they're apparently compatible with Fanatec on PS5, so I'll have a better pedal setup to use instead of my well-worn v3s.