RPi's could be the killer "app" for Haiku.
Otherwise, Haiku runs on modern hardware just fine. I have a custom build from this year under my desk with an AMD Ryzen 7 3700X (8c16t), an NVMe drive, and Haiku boots off the NVMe and runs great with all 16 threads. It even can connect to the internet via the WiFi card on the motherboard.
Have things been playing out that way?
But, I mean, NVMe follows on SATA much like SATA followed on IDE, so on that front things are not so different. And for WiFi, there is not a common device interface for that, so each new generation of hardware from each manufacturer requires a large chunk of new driver code. Haiku reuses FreeBSD's WiFi drivers and 802.11 layer, but as you can see, they are having a hard time keeping up (only recently was one developer hired part-time to work on it, I believe.)
So, it's kind of a wash, really -- on x86 commodity PC hardware, that is. Part of the reason Haiku on ARM still has not taken off is how wildly diverse that ecosystem is, especially how much of a moving target it is.