This bug was fixed in the package partman-auto - 134ubuntu13.1
--------------- partman-auto (134ubuntu13.1) focal; urgency=medium
* Bump minimum and maximum sizes for /boot partitions on default, x86, and EFI platforms to a minimum of 768Mb and maximum of 1536Mb. (LP: #1959971)
-- Brian Murray <email address hidden> Thu, 03 Feb 2022 15:02:21 -0800
This bug was fixed in the package partman-auto - 134ubuntu13.1
---------------
partman-auto (134ubuntu13.1) focal; urgency=medium
* Bump minimum and maximum sizes for /boot partitions on default, x86, and
EFI platforms to a minimum of 768Mb and maximum of 1536Mb. (LP: #1959971)
-- Brian Murray <email address hidden> Thu, 03 Feb 2022 15:02:21 -0800