It sounds good in theory, but even for someone like me who is very leftist, I allow and encourage private companies to use my strong-copylefted GPLv3 software for commercial purposes.

If more and more people write strong-copylefted software, the FOSS community will amass libraries that have no parallel available to proprietary software, and companies will be forced to use FOSS to be relevant.

For more information, read www.gnu.org/licenses/why-not-lgpl.html. This is why GPL over LGPL, but you can use the same logic to explain why software with a significant unique capability should be strong-copylefted.

For something like a keyboard where every private company will just make their own for, I don’t really care whether FUTO discrimates against commercial use or not. For apps like Immich though, I am a little saddened that it is not strong-copylefted.