What's a "true" HDD? A certain type? Or are you asking for those of us that we actually use them as opposed to just owning them but have them sitting in storage?
I qualify for both, actually. I have three HDDs that I actively use, and five that I don't.
One is a 5 TB Western Digital Black, and it is for games (don't worry, ones that warrant it get moved to an SSD while playing). This will likely be the next drive I replace with an SSD, but it'll have to wait until 6 TB+ SSDs are cheap enough to justify replacing a drive that isn't slowing me down (since I can move games over to another SSD), so... it'll probably be a while.
A second is an 8 TB Western Digital Blue, and it is for storage. I can't justify going to SSD for storage until multi-TB SSDs are cheap (as in, below $200 each at least and we're many, many years off from that).
A third is the same as the above, but it is inside an external enclosure and it's used for backups (basically, a duplicate of the other 8 TB drive).
I'll probably be using HDDs in some form for a while yet.
I also have other hard drives that are no longer in use.
Two are a pair of 4 TB Western Digital Blues (not the SMR ones). I used them until a few years ago, and I replaced them with the aforementioned 8 TB drives as I outgrew them.
Another is a portable 5 TB 2.5" Western Digital Elements. SMR, and slow. It was the old external drive.
My final two are a pair of 640 GB Western Digital Blues (from back when they were still 7,200 RPM) and they are from like late 2007 or 2008?