rootless installation failing on Raspberry PI

Running

curl -sSL https://get.docker.com/rootless | sh

returns (= fails)

# Installing stable version 23.0.0
# Executing docker rootless install script, commit: 6647403
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 379 100 379 0 0 1162 0 --:--:-- --:--:-- --:--:-- 1166
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 395 100 395 0 0 1362 0 --:--:-- --:--:-- --:--:-- 1362

gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error is not recoverable: exiting now

The cause seems to be that uname -m resolves to armv7l which is not available at https://download.docker.com/linux/static/stable/

Note that dpkg --print-architecture, which is used to set up apt-get would resolve to armhf

Environment: Raspberry PI 2 B, Raspberry PI OS light, 32 bit

Start with the rootless installation script invoked by https://get.docker.com/rootless and reproduce the failure on the Raspberry Pi environment described. Trace how it turns uname -m's armv7l into the download URL, then verify that installation completes using the available armhf target.