FUTO apps aren't open source but rather source available with heavy restrictions on usage:

https://github.com/futo-org/android-keyboard/blob/master/LICENSE.md

They're taking the place of real open source apps and making it less likely for viable options to emerge since people are going to use and contribute to these.

android-keyboard/LICENSE.md at master · futo-org/android-keyboard

Offical FUTO Keyboard Issue Tracker and Source Mirror of https://gitlab.futo.org/keyboard/latinime - futo-org/android-keyboard

GitHub
FUTO made a $40k donation to GrapheneOS supposedly with no strings attached. They ended up being unhappy with us not making content with them and promoting them. They began supporting attacks on us and tried to destroy the GrapheneOS project. Recommend not taking money from them.
It's not hyperbole to say that FUTO has caused millions of dollars of damage to GrapheneOS with the fabrications and spin they're still actively spreading about us. Any developer offered money by them should be aware of what happens if you don't promote them and tolerate abuse.
@GrapheneOS I'm a fan and keep up with both groups here, but I have not seen any such attacks. Not on their blog, YouTube channel or elsewhere. I would appreciate some reciepts.