[snvzz]

I'll avoid these chips merely because they don't have support in the Open Source FPGA stack (yosys/nextpnr), whereas other chips do.

[buildbot]

FPGAs would be so much more useful if AMD(Xilinx)/Intel(Altera) just gave up trying to build there own tools and instead supported F4FPGA: https://f4pga.org

[snvzz]

Note that some vendors actually do. QuickLogic mentioned there was contributed by the company making these FPGAs.