I want to have 2 accounts for my favorite game on my S9. That means of course two installs that operate separately from one another with each functioning as a standalone, with their own log-in particulars. Supposively this can be accomplished with dual apps and/or using a 3rd party app with parallel capability. Any specific step by step instructions, video links, etc. which would serve to accomplish this goal is greatly appreciated. I am unfortunately not too tech savvy in some respects hence the appeal for help. Thanks in advance.
Device settings>biometrics and security>secure folder>setup password>add apps, you can add installed apps or from the play store after you login/make a new account in secure folder.
Or you could try searching the play store for "parallel app" or "multi account" for other options.