Very much this. Even when programming for constrained environments, it's almost never necessary to self-host anymore. It's easy to use host-side tools to crunch code down to something that'll work on whatever the target is.

From a practical standpoint, one of the few modern uses where FORTH shines is as a REPL for new chips/SOCs so you can play around with the hardware and see how things actually work/debug the databook.

Have you been using it for that? Which Forths and which chips have you been using?