@Wine - ArchWiki:Upstream Wine supports three ways of running 32-bit Windows applications on a 64-bit system:
• WINEARCH=win32 which runs Wine as a 32-bit Linux application in a 32-bit prefix.
• "Old WoW64", which runs Wine as a 32-bit Linux application in a 64-bit prefix. This allows 32-bit and 64-bit applications to coexist in the same prefix.
• "New WoW64". which runs Wine as a 64-bit Linux application in a 64-bit prefix. 32-bit Windows applications are supported via thunking to 64-bit Wine code. This is most similar to
WoW64 on Windows.
Since Wine
10.8-2, Arch Linux enables the new WoW64 mode. Most 32-bit Windows applications will install and run without any additional steps needed.