If so, how do you do it? Do you use Google Play books or use apps like PDF file readers? I’m only 19 and I’m interested to start my reading hobby. Though I can also grab some books on a close bookstore nearby, I am also interested to do it digitally.


I usually download an epub of the book and put it on my Kavita server, then read from my phone.
Kavita? Is that an app?
The link Axolotl replied with is it. Its a selfhosted server software that you host on one machine and access from others. You access it via its webui on your browser, and it gives you a browser based reader for all your ebook and manga files. The benefit to that is its device independent. You can pick up and keep reading from anything with a browser.
https://www.kavitareader.com/
Kavita sounds awesome! I see that you can send files to a device for offline reading. Do you know if you do that, if your reading state re-syncs to the server when you go back online?