If you distribute your app for desktop, users will install it no matter what, but with installable webapps users won't install it until it's already part of their routine.
Of course, users are more likely to try out your app if they don't have to go through an installation process first, so it's a tradeoff.
Of course, users are more likely to try out your app if they don't have to go through an installation process first, so it's a tradeoff.