I don't remember if I specifically checked the S24, but I know I got the impression from my prior research that the S21FE was the last device Samsung had released with a US model number (almost certainly a prerequisite for being on Verizon's approved list) that had support for dual physical SIMs - and, at that (as I mentioned), only one model number out of about a dozen (I think there were three with dual physical SIMs for other countries); plus, if I understood and remember my reading correctly, dual-sim support was disabled in firmware at release (both physical and eSIM) and only made available later in an OTA update, and depending on the carrier it might have been further disabled in an additional way - one that could potentially persist even after unlocking and refurbishing, which is why I ended up having to return the first one I bought and ordering another. Samsung support even said my device ID was supposed to have dual SIM support, and it looked to me like the physical contacts were there, but no way to access the feature.
Taking a quick look now...the first several sources I found say the S24 is the first Samsung to support dual eSIM, but that it does not support dual physical SIMs. On the other hand, most sources I was able to find about the S21FE said either that it supported dual physical SIM or that it did not, and didn't seem to be aware that it depended on the specific model number.
GSMArena says the S24, S24+, and S24 Ultra can have dual nano SIMs and lists several models each. And there's no guarantee they have all the applicable model numbers. But based on my previous reading, I would expect that a US model with dual pSIM would have a model number ending in U/DS, and I don't see one of those.
Dual SIM is not a popular feature with US carriers, from what I have seen, and Verizon's whitelisting of specific devices allows them in particular to keep something of a stranglehold on that aspect of the market and restrict what it's worthwhile for manufacturers to make available with US network band support. At least, that's part of what some folks think is going on.
Anyhow, the S21FE should get Android 16 eventually and five years of security updates (it was originally supposed to get 15 and security through the end of 2025, and then Samsung announced they were extending that for a bunch of devices in February 2022), so unless I find myself frustrated by its shortcomings or I break it, I wasn't really planning to upgrade again until...probably Black Friday season of 2026, at which point (depending on what providers I am with at the time and what changes have occurred) my best prediction currently would be (in descending order of likelihood) that I would upgrade to either the latest or next-to-latest Oneplus flagship or step-down (I believe that's what the R versions are), the latest or previous release Pixel or Pixel A, or...well, looking at the direction everything else is headed, I feel like the next most likely candidate behind those is likely to be the Fairphone 6 or 7.
I've drifted WAY off topic now, though.