I recently received a 64-bit version of new Ubuntu daily builds. You can download Ubuntu 21.10 daily builds from the Ubuntu website.
You will be able to download Ubuntu 21.10 on October 14, 2021. This date is the one listed on Launchpad, the home of Ubuntu development.
Does the new version of Ubuntu (21.10) have a 32-bit version, which can be installed on Android phones within Termux?