Does GNU Allow Commercial Use?
The GPL is a free software license, and therefore it permits people to use and even redistribute the software without being required to pay anyone a fee for doing so. You can charge people a fee to get a copy from you. You can't require people to pay you when they get a copy from someone else.
Can GNU license be used commercially?
Software under the GPL may be run for all purposes, including commercial purposes and even as a tool for creating proprietary software, such as when using GPL-licensed compilers.
GNU General Public License - Wikipedia
GNU packages need not be FSF-copyrighted; this is up to the author(s), generally at the time the package is dubbed GNU.
Copyright Papers (Information for Maintainers of GNU Software)
Is GNU Lesser General Public License free for commercial use?
The GNU Lesser General Public License (LGPL) is a free-software license published by the Free Software Foundation (FSF)....GNU Lesser General Public License.
GNU Lesser General Public License - Wikipedia
Is the GNU Public license GPL?
The GNU General Public License (GPL) is a free, copyleft license used primarily for software. The GNU GPL allows users to change and share all versions of a program. GPL is provided through the Free Software Foundation, a nonprofit corporation that works to provide free software for the GNU Project.
What is a General Public License (GPL)? - Definition from Techopedia