Over the past few renewal cycles, NVMe solid-state storage has gone from a "Turbo" or "premium" add-on to something budget shared hosts advertise by default. The reason is straightforward: NVMe drives cut the disk I/O bottleneck that used to be the main thing slowing down a shared server under load, and as more visitors expect fast page loads, hosts that stayed on older SATA SSDs started losing the performance comparison.
What this means for you: if you're comparing plans and one host still doesn't mention NVMe or SSD storage at all, that's worth asking about directly before you buy — it's become close to a baseline expectation rather than a premium feature.