When we talk about mixers that got shut down by the government, the only one I can vouch for to be legit is or was chipmixer and one other mixer which I can not remember their name anymore, the rest either decided on their own to shut down or carried out an exit scam.
Sinbad was shut down as well.
Wasabi wallet was also force to cease operations, which is a coinjoin wallet, not properly a mixer.
Yeah, thanks very much for reminding me, Sinbad was that other mixer I said I forgot it's name, I remember vividly back then that Royce was the manager of their signature ad campaign, even Binance had to flag the bitcoin address from which Royce was making weekly payment to their participants of the campaign.
I did participated in the early signature campaign of Wasabi wallet, but I didn't follow up on them afterwards to know when they were forced to seize operation, but I do know when they had reputation issues on Btt due to them censoring a part of their service, something alot of us assumed was completely against the decentralization they preached.
Anyways, alot of mixers and services related to mixers have indeed come and gone, but then, hope and believe that mixers of today will stay around far longer than their predecessors.