Conda is "just" a distribution and package management tool. As a beginner it is a good idea to just go with it, but installing all packages using pip is just as good, in the end. For reference: https://www.xkcd.com/1987/
In bioinformatics there is a trend for systems like qiime2 to be basically impossible to install via pip and to have conda and docker be the only options. In part this is because rarely do bioinformatics pipelines rely only on python but on a multitude of existing programs that need to be installed.