But they only do this stuff to make their software seem fast and easy to install for the non-technical users because of the lock down restrictions... App Store

But they only do this stuff to make their software seem fast and easy to install for the non-technical users because of the lock down restrictions... App Store, Gatekeeper, etc are now working against what they were supposed to solve and encouraging worse developer behavior. Really the best solution would be tackling the reasons why Zoom are doing this in the first place. Like how they provided a gentler version of Sandboxing to work around pro creative apps being basically unusable in the first versions. The more you lock it down the more bad behavior you'll encourage from less ethical developers.