I have to reload zoom every *********** time I want to use it

I don't know what the problems are with zoom.  I can't go live on face book,  i can't join meetings without having to download zoom each a nd every single time.  I am loading the program from the microsoft app store so updating is not the issue.  I can't express how annoying this waste of time is.  I am paying for a service that I can't even get support for.  This is unacceptable..... I don't have to tell you...... you have already experienced this or you would not be here