user@DESKTOP-P57624Q:~/BOINC/projects/milkyway.cs.rpi.edu_milkyway$ elfx86exts milkyway_nbody_1.83_x86_64-pc-linux-gnu__mt
File format and CPU architecture: Elf, X86_64
MODE64 (call)
SSE2 (movsd)
CMOV (cmovle)
SSE1 (movaps)
SSE41 (roundsd)
AVX (vmovsd)
NOVLX (vxorpd)
FMA4 (vfmaddsd)
RTM (xbegin)
NOT64BITMODE (xchg)
SSE42 (pcmpistri)
SSE3 (lddqu)
AVX512 (vmovups)
AVX2 (vinserti128)
BMI (tzcnt)
Instruction set extensions used: AVX, AVX2, AVX512, BMI, CMOV, FMA4, MODE64, NOT64BITMODE, NOVLX, RTM, SSE1, SSE2, SSE3, SSE41, SSE42
CPU Generation: Unknown
user@DESKTOP-P57624Q:~/BOINC/projects/milkyway.cs.rpi.edu_milkyway$ elfx86exts /mnt/e/programdata/BOINC/projects/milkyway-new.cs.rpi.edu_milkyway//milkyway_nbody_1.83_windows_x86_64__mt.exe
File format and CPU architecture: Pe, X86_64
MODE64 (ret)
CMOV (cmove)
SSE2 (movapd)
SSE1 (movaps)
BMI (tzcnt)
Instruction set extensions used: BMI, CMOV, MODE64, SSE1, SSE2
CPU Generation: Haswell

I used this: https://github.com/pkgw/elfx86exts