94,43% of all Steam users, use 64-bit Windows (either Windows 7, 8.1 or 10).
Granted, this doesn't mean all STO users, but since Steam is the largest gaming platform, it accounts for a lot of players overall. Still supporting 32-bit OS in 2019, is ridiculous to say the least. 64-bit OS and hardware has been common place for the last 10 years at least. If you are still running on a 32-bit OS and hardware in 2019, I have zero sympathy. Upgrade your hardware, or GTFO! Simple as that. Doesn't need to be high-end hardware, since ANY hardware sold today is 64-bit compatible, and there is literally no cost difference between 32-bit or 64-bit Windows 10 (if there is a cost difference at all).
Source:
https://store.steampowered.com/hwsurvey/Steam-Hardware-Software-Survey-Welcome-to-SteamEDIT: Sorry, bit late to the party. After re-reading Tuskin's reply, which basically was the same as mine. But the point stands. I would hope moving completely to 64-bit, and even pushing for completely moving to DirectX 12 would be beneficial for the game moving forward. I have a fairly high-end machine myself, and current STO still lags behind quite a bit in various locations. And STO isn't the most graphically "pretty" games in existence, yet I can run other games with little or no issues, as compared to STO.