Has anyone experimented with combining SSDs and HDDs for hybrid storage on Windows?

Hello,
Your interests in hybrid storage solutions are quite valid, as a combination of SSDs and HDDs can provide a good balance of speed, capacity, and cost effectiveness.
The general idea is to use the SSD for your operating system, apps, and most frequently used files. This takes advantage of the SSD's faster read/write speeds and can dramatically improve boot times and the overall responsiveness of your system. The HDD, on the other hand, can be used for long-term storage of files and data that aren't accessed as frequently. This takes advantage of the HDD's higher storage capacity and lower cost per gigabyte.
In my personal experience, this setup works quite well. Windows itself supports this kind of arrangement natively, with you being able to choose the install location for your applications and specify different default save locations for different types of files.
There's also the option of setting up a software-based hybrid storage system using certain types of specialized software. This software works by intelligently caching frequently accessed files on the SSD, while keeping infrequently used files on the HDD. However, while this setup can often provide performance similar to having a full SSD, it does require setting up and maintaining the software.
As far as specific recommendations go, the exact best setup can depend quite a bit on your specific use case, budget, and technical expertise. However, generally speaking, getting a good-quality SSD for your primary drive and a larger, reliable HDD for your secondary drive is a good starting point.
Remember to consider your backup solutions as well. Just because your data is split across two drives doesn't mean you can ignore backing up. If anything, having data on two different drives makes backups even more important.
I hope you find this information helpful. Please don't hesitate to ask if you have any more questions.