Still following the post above published last month see the preprint that was put online this month authored by four senior scientists:
"...We scientists do the actual research, also provide
mostly free services by reviewing the papers for such journals and these publishing houses
make enormous profits out of nothing really. They use the scientists and we let them use
us! This is totally absurd and it has to stop!" https://arxiv.org/pdf/2104.01794.pdf
