Long height characters truncated in the bottom of the terminal if font size is 12

[Aptivi]

I have noticed that the last line in the terminal that appears to have the long height characters like the "|", "[", and "}" have been truncated by a pixel in the bottom. For example, if I got a bash prompt in the bottom of the terminal, and I've written such characters, I'll notice that the above problem occurs.

However, this only happens if the font was set to Ubuntu Mono and the size was set to 12px. Anything other than that, and the last line looks normal.

Steps to reproduce:
  1. Open the terminal
  2. Continuously press Enter until you reach the last line
  3. Write the characters that have long height, like "{", "}", and so on.

What is expected to happen:
  I expect that these characters appear normal

What actually happened:
  These characters appear truncated in the bottom by a pixel or two

lsb_release -rd:
Description: Ubuntu Impish Indri (development branch)
Release: 21.10

apt-cache policy gnome-terminal:
gnome-terminal:
  Installed: 3.38.1-1ubuntu1
  Candidate: 3.38.1-1ubuntu1
  Version table:
 *** 3.38.1-1ubuntu1 500
        500 http://sy.archive.ubuntu.com/ubuntu impish/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: gnome-terminal 3.38.1-1ubuntu1
ProcVersionSignature: Ubuntu 5.11.0-20.21+21.10.1-generic 5.11.21
Uname: Linux 5.11.0-20-generic x86_64
ApportVersion: 2.20.11-0ubuntu67
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Jul 8 14:44:01 2021
InstallationDate: Installed on 2021-02-02 (155 days ago)
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210123)
SourcePackage: gnome-terminal
UpgradeStatus: No upgrade log present (probably fresh install)