bbb-install.sh hangs on TLS handshake with ubuntu.bigbluebutton.org

[stradiVarius-green]

When running the installer:
wget -qO- https://raw.githubusercontent.com/bigbluebutton/bbb-install/v3.0.x-release/bbb-install.sh | bash -s -- -v jammy-300 -s bbb.something.com -e bbb@something.com

The script hangs at:
wget -qS --spider https://ubuntu.bigbluebutton.org/jammy-300/dists/bigbluebutton-jammy/Release.gpg

Diagnostics:

curl -vk https://ubuntu.bigbluebutton.org/
*   Trying 167.99.180.121:443...
* Connected to ubuntu.bigbluebutton.org (167.99.180.121) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* TLSv1.0 (OUT), TLS header, Certificate Status (22):
* TLSv1.3 (OUT), TLS handshake, Client hello (1):

Tested from:
Ubuntu 22.04.5 LTS (Jammy)
Region: Central Asia (Uzbekistan)
Tested via multiple networks:

• Mobile LTE: works fine
• Corporate NAT / VPN / Tailscale: stuck on TLS handshake