will you just avoid auto scanning vst3plugins?it’s never been done,cause my vst3 folder has hundreds of plugins inside.Scanning all plugins inside of vst3folder is not capable for this beta app.
Hello @kohguitar welcome here 
I don’t know whether you’re talking about the Mac or Windows version of MG3.
If it’s for Windows, this isn’t even a Beta version yet, it’s a proposal to start testing.
The official Beta version will come out later.
For the time being, we need to be patient and learn to discover the existing features and possibilities, which is already a good work programme.
i am talking about windows version. it will hungup&crush during serching vst3 plug in foloder.
and I can’t download MG3.0.50 from linnk from your posted, I’m using google chrome,Windows 10 22H2.