The LGPL version of Qt can also be used in commercial proprietary software. You have to provide only the source code of the Qt libraries, not of your code, and you can sell your software (and only the Qt libraries, which are public anyway, can be redistributed by your users).
The licensing fee argument was valid back when the Open Source version of Qt was QPL- or GPL-licensed, but not anymore.
PS: Oh, and if you cannot use LGPL code, then you cannot use Electron either, because it contains LGPL code from WebKit that survives in Blink/Chromium. And it is actually harder to comply with the LGPL requirements for Electron than for Qt, because Electron upstream does not help you, they do not even mention the LGPL on their licensing page.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
The LGPL version of Qt can also be used in commercial proprietary software. You have to provide only the source code of the Qt libraries, not of your code, and you can sell your software (and only the Qt libraries, which are public anyway, can be redistributed by your users).
The licensing fee argument was valid back when the Open Source version of Qt was QPL- or GPL-licensed, but not anymore.
PS: Oh, and if you cannot use LGPL code, then you cannot use Electron either, because it contains LGPL code from WebKit that survives in Blink/Chromium. And it is actually harder to comply with the LGPL requirements for Electron than for Qt, because Electron upstream does not help you, they do not even mention the LGPL on their licensing page.