Error running on Ubuntu 20.4 - can't find GLIBC_2.34

[sprite1g]

Describe the bug
After downloading the linux64 archive and unzipping, the app fails to launch.

To Reproduce

1. From command line (bash) in Ubuntu 20.4, go to directory of extracted zip file for the linux64 download.
2. run $ ./tero
3. Observe error message:

./tero: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by ./tero)

Expected behavior
App should run.

Current behavior
Error is printed to command line.

Screenshots/Video
N/A

Desktop (please complete the following information):

• OS: Ubuntu
• 20.4

Additional context
/lib/x86_64-linux-gnu/libc.so.6 file exists, but it points to version 2.31.

$ ls -l /lib/x86_64-linux-gnu/libc.so.6
*************** /lib/x86_64-linux-gnu/libc.so.6 -> libc-2.31.so

[URUWorks]

I am not a Linux user but the following can help?

sudo apt update
sudo apt install libc6

[sprite1g]

I am not a Linux user but the following can help?

sudo apt update
sudo apt install libc6

That doesn't help, install says the latest version is already installed.

libc6 is already the newest version (2.31-0ubuntu9.14).

[URUWorks]

I suppose it depends on each Linux distro, Tero Subtitler is compiled in Linux Mint.