I have Bitwig 4.4 (windows and mac machines) and have been testing out SampleTank now that I bought the TotalStudio Max product. Installation was pretty easy given how monstrously huge (how many hundreds of gigabytes of content? Wow.) it was.
However the biggest instrument in the TotalStudio bundle, SampleTank 4 is not stable. It crashes whenever I load new presets or multis.
Thanks to bitwig's resiliency, you can restart the plugin host without losing your project work but it still seems like there's probably a SampleTank4 bug.
Warren