I still cannot install it on SID (Winter 2021):

$ sudo apt install wine32
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libcurl4:i386 : Depends: librtmp1:i386 (>= 2.4+20131018.git79459a2-3~) but it is not going to be installed
 libfaudio0:i386 : Depends: libgstreamer-plugins-base1.0-0:i386 (>= 1.10.0) but it is not going to be installed
 libwine:i386 : Depends: libgstreamer-plugins-base1.0-0:i386 (>= 1.0.0) but it is not going to be installed
                Recommends: libodbc1:i386 (>= 2.3.1) but it is not going to be installed
                Recommends: libsane1:i386 (>= 1.0.27) but it is not installable
                Recommends: libasound2-plugins:i386 but it is not going to be installed
                Recommends: gstreamer1.0-plugins-good:i386 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.