Pretty sure they bought the trademark from the company who owned it previous (for a 1980s era board game if I recall correctly). They bought it to prevent shitty 2077 clones with the same name from popping up. I haven’t heard of them actively pursuing copyright infringement against others who use cyberpunk.
The term has been trademarked since 1995 for different uses. This isn’t anything new and there’s no signs they intend to use it aggressively. https://trademarks.justia.com/856/81/cyberpunk-85681741.html