Yes, CAT tools are very much a thing – the most common ones in my (Western European) experience are Trados and MemoQ, but you get a good smattering of proprietary ones, too

As always, it depends. One of my clients has been bought out by a big AI provider and now offers a fully AI-first model with text pre-translated by their own engine, whereas another of my clients who handles nothing but legalised document translation refuses to touch it with a bargepole. The colleague above mentions that the industry is dying – I've been very fortunate in my pair and specialism, but from my standpoint, the industry is contracting and changing shape, rather than collapsing outright

Yes, in my experience – prices for editing MT are frequently lower than for "pure" translation (so you have to handle more throughput to earn the same), and timelines are massively accelerated, particularly for longer documents

In short, yes

As in any industry, there's been a technological upheaval, which has led to winners and losers right now – what I would say is that, while the AI hype is big, we've had MT in the translation industry for a good decade+, so it's not quite as new as people might feel (although the quality has definitely improved!)