After that Jolla failed with the tablet. Then they didn’t deliver a successor device for Jolla One and provided SailfishOS only as aftermarket OS. You remember the Android problem from above? The hardware of others, without official support? That is calling for problems.
And to make everything worse Jolla started a cooperation with Russia in 2015. According to Wikipedia they quit it in 2021.
Hint about compatibility and APIs
Never try to be compatible to an environment which doesn’t want to maintain interoperability with you.