Originally posted by BigMackCam It's a common misconception that development, maintenance and quality of open source, enthusiast-developed software is somehow inferior to commercially produced products, but that really needn't be the case. There's some poorly designed and maintained stuff, for sure, but the same can be said of many commercial applications. I get far better support response via the darktable forums and developers than I ever got from Adobe for my Lightroom 6 stand-alone edition.
Many servers in global organisations run Linux distros, along with open source utilities and drivers. Several banks I did work for in the early 90s right the way through to just a few years ago were running Linux workstations and using them for financial modelling. Less exciting but equally relevant, a few of those banks ran OpenOffice instead of Microsoft products...
List of Linux adopters Major OpenOffice.org deployments
Executive summary: The cities of Paris, Berlin, Vienna, Prague, Munich, Birmingham, Bologna, Bristol, and Gdansk rely at least partly on OpenOffice, as well as 70,000 desktops in the French gendarmerie alone, and more in a range of government departments in France (National Assembly, Ministry of Interior, Ministry of Equipment (!), Tax Agency, Board of Customs, and MPs), 1,500 in the Metropolitan Court of Budapest, 80,000 in Extremadura, Spain... it's a looong list, and that's just Europe (some regions are lagging behind, though).