This cannot be overstated enough. If you are planning a B2B product, especially anything middleware-ish, not planning for this on your upfront is just begging for failure.
In practice it has to be more like 200% better, at least, to be a viable competitor that has realistic prospects of being adopted.
As long as the cost is kinda spread out and not directly visible by management
So yeah just being 20% better doesn’t mean anything, because most big orgs are much more inefficient than that anyway, almost across the board
Most younger folks wont have an experience of enterprisey stuff like remoting into a terminal server so that you could run a fat client in a shitty and slow network connection, or have the most awkward tech stack installed on your local computer.
Moving to "its just a website" was way more than a 200% improvement on many things, even with the tradeoffs that javascript gave, moving people to the next level of more streamlined workflows doesn't have nearly the sales pitch.