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generally the limit here is windows/antivirus making your storage a ton slower. Linux/Mac don't have this problem nearly as bad.

Windows isn’t alone in this problem… someone uploading gigabytes of files to a web server can cause this too.

Are you talking about a web server running in somebody's basement, or a web server running in a data center? Because the SSDs in a real server wouldn't have SLC caching in the first place.

windows is alone in the problem of having an OS with a really slow file system and being commonly deployed with antivirus that will scan every file.

I read that disabling the Windows write cache for the drive helps with this problem. Don't ask me why though.

The OS stops sending bazillions of bytes to the drive, overwhelming its' caches, but waits for the writes to complete. Less throughput from the OS => more time for SSD to complete whatever inner shenanigans are happening.

I've seen people complain exactly about this.