The way I read it, the message you replied to was a complaint about parts of VSCode being proprietary. Do you mean to say Jetbrains is pretty ok on the "not being proprietary" front?
So yeah, I'll use Excel to interoperate with fancy spreadsheets, but if LibreOffice will do the job, I'll use it instead. I tried out several of the fancy proprietary editors at various times (SublimeText, VSCode, even Jetbrains), but IMO they were not better _enough_ to justify switching away from something like vim, which is both ubiquitously available and FOSS.