My personal thoughts on this is that EDA tooling is quite expensive to license, and I'm sure many people have jailbroken their Linux versions to avoid paying for the higher tiers, as Linux doesn't have as strong anti-tamper/app sandboxing capabilities as the other 2 big OSes.

Not saying I agree or support this decision, but I can see why they chose to do this, and their set of paying customers is quite different from your average piece of software.

If this were Google, they'd have made the whole backend of it cloud only, and required all customers to upload all data to their servers. Obviously this doesn't fly in a lot of industries FPGAs tend to be used in.