MediaMonkey happily uses Audacity’s 32-bit WAV files to create CDs which play just fine in all my CD players (some very old boomboxes, some fairly new automotive in-dash units etc.).
Look at the “Save as type” when you export. Set it to “WAV (Microsoft) signed 16-bit PCM” then the files will be 16-bit. Unless you have a lot of silence or near silence in your files there is no reason to export 32-bit float WAV for CD burning. It just takes up disc space and slows down the export and burn.