sounds just a tad paranoid.
the android situation is not really comparable to desktop linux.
google has a monopoly over the distribution of all apps, android has never really been independent of the playstore.
unlike desktop linux which has an established ecosystem already
they can lockdown their steamdeck & steamos but there is no point in running steamos unless it comes preinstalled.
and they cant really make the installation on other distros more "fidly", because the package manager handles installing software.
ubisoft should get used to players no longer owning their games