If the commenter can't open their existing Ableton files in Bitwig, and/or use the existing VSTs they've likely spent years with and collected or designed presets for, it makes somehow converting to an entirely new DAW far too daunting and complex a process for any serious producer.

I myself use Logic Pro, and have files from Logic and GarageBand from over - (holy crap I'm getting old) - 17 years ago, that still open and play in Logic - (minus the occasional missing plug-in) - and I've used Logic for so long at this point that there is literally almost no barrier between my imagination in terms of composition, engineering and production and the actual software and hardware.

To switch to a solution such as Bitwig not only removes access to the 17+ years of files I've got (who knows how many years of files the original commenter has) - it makes it so I can no longer, e.g. just send a Logic or Ableton file to a fellow producer - which I often do, and is often done; for collaborations - it removes access to the incredible library of software instruments included with Logic that I've slowly became a veritable genius with over more than a decade...

Ultimately, unless you pretty much started with Bitwig, or Ardour, etc - I couldn't ever see a seasoned producer who has settled into their closed-source DAW of choice ever seriously considering this.