“Beginning with Windows 10, version 2004, all new Windows 10 systems will be required to use 64-bit builds and Microsoft will no longer release 32-bit builds for OEM distribution.” - 10 May 2020.Being able to run 32-bit programs on 64-bit windows doesn't help somebody who has a 32-bit system. I'm sure there's a good reason there's no 32-bit version of the game, but what you've said here isn't it.
I think the last true-32bit computer sold was 8 to 10 years ago? All since have been 64bit that can also run 32bit. Even smartphones and tablets were equipped with 64bit starting around that time.
Although I understand that there are still 32bit computers out there in communities where computer pricing means lack of access to 64bit architecture, PC Benchmarks notes that only about 0.3% (3 out of 1000) pc computers are running 32bit architecture.