Xilinx/AMD doesn't make overt donations any more AFAIK, but they still subsidize hardware as a loss leader and for academics. For example, academic groups can buy the RFSoC 4x2 board for $2149 USD, which is a small fraction of the volume price of the chip that's on it.
"EDA software is crap" is so close to an axiom around here that I think Vivado doesn't get the credit it deserves. The synthesis flow has been rapidly modernizing and supports a chunk of VHDL-2019. The bundled simulator still lags on support and features, for reasons that are pretty easy to understand.
"EDA software is crap" is so close to an axiom around here that I think Vivado doesn't get the credit it deserves. The synthesis flow has been rapidly modernizing and supports a chunk of VHDL-2019. The bundled simulator still lags on support and features, for reasons that are pretty easy to understand.