It’s nothing to do with the manufacturer. I have 3 Filco Majestouch TKL keyboards, all with Cherry MX “silent” Red switches. They are quiet in and of themselves.

The only noise from them is if I bang away at them too hard, which is generally a sign that I’m frustrated and need to go for a walk. (It’s mostly my wife or kid who point out I’m being too noisy, and they are right 99% of the time.)

Sad to see Filco go. I’ll keep an eye on eBay for any bargains to keep a spare of two.