> Open source tooling is very primitive and not usable
Maybe you're working off old information, but the FOSS tooling (ghdl, yosys, nextpnr) is completely sufficient for hobbyists. If you're doing huge, high-speed designs on expensive FPGAs, sure, use the vendor tools, but for your average iCE40/ECP5-scale design, FOSS is the way to go.