If your library is on other platform like gog, epic, amazon or off platform .exe you can use heroic launcher and for most stuff it works just as well.
For some games there is a little more learning curve because you have to translate custom steam configurations found on protondb to do the same thing in heroic but overall you actually have way more control then steam.
The only reason “id think twice” is if you play lots of games with anticheat which does not work on every distro (like arch btw).
Based on the headline this is not about blocking ai scrappers but by making them pay to do it.
Based on the discussion below which moved that goalpost the most likely answer is by making it cheaper to scrape “legally” then it costs to mimic millions of individual residential browsers with human users.
I don’t know how many aces cloudflare has up its sleep to detect secret ai but they definitely have the tools to make it pretty costly and difficult. There is also a broadband impact difference between a few capitalist megapigs scrapping secretly versus loads of global basement dwellers and smaller companies scrapping worry free.