Arduino is a company that likes to make fundamentally incompatible things, add their branding and claim that they are the big technology and not AVR, C++ etc.

Arduino is a company that likes to make fundamentally incompatible things, add their branding and claim that they are the big technology and not AVR, C++ etc. OTOH, if you have a programmer that's been only using the Arduino IDE and its libraries, they probably haven't learned any C++ beyond loops and procedures and other atoms. It's technically C++ underneath, but a tiny subset in practice. Oh, and actual corporations and labs do use them, though. It's really a dead simple way to automate some electronics with literally off the shelf tools. Almost any alternative will be extremely niche, require invasive SDKs and probably either cost 100 times more or need shipping overseas or both. Much like Raspberry Pi that you can get in your corner store and find ready code to go while "professional" SBC's are behind crazy hurdles with outdated sw and no documentation.