Things like this are the main reason I went to Linux for everything except certain games, and locally installed open source for office and photo post processing.
I really miss the days of locally installed OS's, local software suites, when you did not need online accounts and cloud computing for the most mundane tasks. And I really hope those days will come back, or at the very least things like Ubuntu, LibreOffice and Darktable will stick around for quite a while.
Funny thing so, the old versions of lightroom and photoshop, the offline ones, still work perfectly fine under Win 10. So if you have a license key I don't see how Adobe could kill those.