Have they ? Until Lebby shows proof I can't believe what he says. Same man that said on track to meet all goals by ASM in 2023 and close to closing deals by the end of December. Not true and didn't happen. He had his excuses of course but don't everyone when they fail.
Unfortunately, there exists no confirmation that any of this is operational. Remember; Lebby said in November that Lightwave is working on getting their processes accepted into foundry PDKs.
Few here accept that as a statement of fact. It does not fit their paradigm. Regardless, it is what Lebby said.
Then, of course, there is the whole conversation about frontend PDKs and backend PDKs.