The i386 architecture hasn't been dropped, it is still available in the archives to support 32-bit applications. The major change is that there no longer is a 32-bit kernel in the archive (the package linux-image-686 is no more). But most packages are still available in their i386 versions:

  $ curl -s http://deb.debian.org/debian/dists/trixie/main/binary-amd64/Packages.gz | zgrep ^Package: | wc -l
  68737
  $ curl -s http://deb.debian.org/debian/dists/trixie/main/binary-i386/Packages.gz | zgrep ^Package: | wc -l
  66958