Adobe Reader DC what is all this on my system? Please Explain...

I login this mornng to my machine and Adobe pops up while am doing something else and asks for a 2FA verification??? WTH?? so I decide to look into the window processes and find this... 

What is all this and have you guys ever heard of SMALL footprint?!?

1) Please explain why I have 5 processes when it should be ONE... it is a priviledge layer issue?

2) Then why they are 32bit processes running on 64bit machine.... i mean its 2020 yeah?

Lack of responses will have me evangelising competitors products.