With a SaaS business - most of which are b2b - there are tremendous costs to switching providers and going without is typically not an option. For example, if company uses Salesforce, they must have a CRM and it will likely save them little to no money to switch to a competitor (ex. Hubspot) but it will create enormous organizational disruption as people and processes are built around the existing platform. So customer life-cycle is likely 10 years or more for the customers that generate the majority of their revenue. And if we do have a recession and they bleed customers, Salesforce can always reduce costs by cutting sales and support staff. The existing capital investments in the software are already paid-off.
In comparison, WeWork's model is predicated on being easier to join and leave than a typical office space. As a result, they attract businesses with shallower capital reservoirs. Meanwhile, WeWork is holding inventory risk in that they hold the long-term lease or the property itself. So in the event of a recession their customer base will be the first to die out or cut costs via less desks and/or working from home.
(WeWork may or may not be off-setting this risk via financial engineering but the question is at what cost as someone has to take the other side of the bet and the downside risk here is pretty obvious. And, oh look, the yield curve just inverted.)
Finally, 10 years in, Uber is still a commodity business. I generally think Uber is better than Lyft and worse than Via, but none of their advantages are anywhere near as durable as a SaaS business. Don't like Ubers new prices? Don't like the the CEOs new haircut? You can use one of their other competitors starting tomorrow. Even if you use Uber today there is zero reason you can't switch to Waymo/Apple/whatever in the future. And in the worst case scenario, Uber paid CAC to educate consumers who will use something else in the future.