No. Unity for Mac switched to 64-bit earlier (around Unity 5.6). Windows is your only path for a 32-bit editor.
: For coding, MonoDevelop (which was often bundled with older Unity versions) is recommended over modern Visual Studio versions, which may have higher system requirements than your 32-bit PC can handle. Alternatives for 32-Bit Systems Unity 3d 32 Bit Download Free
For extremely low-end PCs (1-2GB RAM), Unity 5.6.7 is lighter and fully 32-bit. It lacks modern features like Shader Graph but runs on Windows XP SP3 and Vista. : For coding, MonoDevelop (which was often bundled
Searching for a version of the Unity Editor? While modern Unity versions (2017 and later) are strictly 64-bit, you can still download compatible older versions for free through the official archive. Where to Find the 32-Bit Download Searching for a version of the Unity Editor
It is important to note that Unity officially discontinued 32-bit support for the Unity Editor