W11 64bit and MS365 32 bit

Microsoft support tells me that Microsoft 365 has compatibility issues with Windows 11 64 bit. I came to them because of some issues i have run into, though i find this rather questionable. The issue is strictly an MS Exchange issue that i am running into - other email accounts function fine.

Can folks out there advise on their experiences?

I rather stay with MS365 32bit so i don't have to update a heck of a lot of VBA to be compatibile with Excel 64bit, but if i have to, then that's the way it is. If not, then i have to nuke my OS drive and reinstall Windows 11 64 bit due to either a messed up registry (that's a whole other story between MS365 64bit vs 32bit).

Thank you very much for your input!!!

If you have a 64bit OS, the ideal scenario is to run as many 64 bit executables and apps as possible.
The advantages are obvious. Performance and compatibility being the main benefits.
When you run a 32bit program onto a 64bit system, everything has to be 'translated down' or converted.
It adds a substantial layer of processes as you need every single 32 bit .NET packages to run it among other things.
My advice is simple: make it all 64 bits. It will be worth it.

Thank you! There was a time everyone said to only use MS365 64 bit if you had very good reason, i appreciate your support greatly!