Yes and no. You can stitch a toolchain together using these tools: opencircuitdesign.com, yosys, openlane But if you just want to get up and running with a dev

Yes and no. You can stitch a toolchain together using these tools: opencircuitdesign.com, yosys, openlane But if you just want to get up and running with a dev board, use Vivado (for xilinx) and Quartus for altera. Neither are great. For Vivado, use a release that ends in a X.4 unless you want to bang your head against the wall for a few hours. If you are not liking the graphical flow for Vivado, you can definitely just write your VHDL or Verilog and compile it without the need for "block diagrams" ,etc. Vivado calls it the "non project" flow I believe and thats what most of us in industry use. Most people in industry use the Vendor tools. A few years ago you could get 3rd party tools but they weren't much better. The open source toolchains are coming along but still not for the beginner. The vendors will make their libraries more like foundry PDKs soon though and open source 3rd party tools will hopefully finally take off.