I agree with your point about interop on the level of file formats. We are talking decades of undocumented cruft at this point in the Office file formats - the

I agree with your point about interop on the level of file formats. We are talking decades of undocumented cruft at this point in the Office file formats - the MS implementations are so complex in a random and haphazard way that it's questionable whether they could ever be fully reverse engineered. Running Office on Linux, on the other hand: I think the issue here is simply a lack of vision. Getting to where we are with Proton and Linux gaming today required Gabe Newell as an exceptionally gutsy and ambitious lunatic billionaire to just say, ok, we could spend what it takes and go the last mile here, and it happened. I'm quite certain that a similarly dedicated effort (actually a much smaller one) could get Office running perfectly on Linux, and that would be a huge win for anyone who was ambitious enough to try and claw the lucrative enterprise desktop market away from Microsoft. There's just no one out there yet who's been wealthy and crazy enough to go for this one. The average person thinks all kinds of stuff is impossible when it's not, another great example is how everyone thought Gabe Weinberg had no chance of competing with Google, fast forward to today and DuckDuckGo makes $100M/yr and is probably going to benefit immensely when the govt's anti-trust remedies against Google kick in, no matter what they end up being. The world is Gabe's oyster and he's just a guy who had balls bigger than everyone else's, found a good angle and stuck with it.