Having successfully bid on and completed a number of federal projects during my career, I concur that it is more challenging and rates are higher. However, there are reasons for that. First of all, worker wages are often determined by a relatively higher rate, such as required by Davis-Bacon. Standards, either imposed by Congress or by stringent department policies, are more challenging. Hours and working conditions are often more limited, with little flexibility for what may be contractor desires. Plans and specifications are usually more well defined and alternate or substituted materials or techniques are mostly not allowed.
Accountability for taxpayer dollars and for meeting the stringent standards afore mentioned is the responsibility of a quality assurance person who oversees the project, typically more closely and critically than that of a private industry project quality control person. If you are accustomed to being able to be more free and flexible in mobilizing, procurring your needed materials, and conducting your work ... then perhaps you feel intimidated ... like quality control is trying to "stick it to the contractor."
It's all in understanding how the federally funded projects are accomplished and how the strict compliance is integral to the deal. If you are a gubment hater going in, likely you will come out of it feeling like "they stuck it to you". Conversely, if you bid, contract, mobilize, complete work as specified ... with commensurate costs covered to allow a nice profit, then you and your wage earners will feel like the taxpayers have allowed you a great opportunity.