You use linux, strip the DRM. It is really trivial. If you're not willing to put in that much effort, you really shouldn't be using linux. The whole point of using linux is that you are willing to put in the work required to get it to work as you need it to, and the reward you get for that work is stratospheric productivity.
The whole point of DRM is to prevent you from consuming books in the fashion you would like to. That is fundamentally antithetical to the philosophy of open source. Strip the DRM, or even better dont read DRMed works.