Wait. I'm not sure any more since the source says one thing and the running module seems to say something else:
$ perl -MXML::RSS -e 'print $XML::RSS::VERSION,"\n";'
1.59
$ grep -E '1.59|1.62' /usr/local/share/perl/5.34.0/XML/RSS.pm
$XML::RSS::VERSION = '1.62';
$VERSION = '1.59';
version 1.62
I've deleted the existing module, reinstalled it (again) via CPAN, and double checked that there is only one instance:
$ find /usr -type f -name 'RSS.pm' -print 2>/dev/null
/usr/share/perl5/XML/Feed/Entry/Format/RSS.pm
/usr/share/perl5/XML/Feed/Format/RSS.pm
/usr/local/share/perl/5.34.0/XML/RSS.pm
$ perl -e 'print join("\n",sort @INC),"\n";'
/etc/perl
/usr/lib/x86_64-linux-gnu/perl-base
/usr/lib/x86_64-linux-gnu/perl/5.34
/usr/lib/x86_64-linux-gnu/perl5/5.34
/usr/local/lib/site_perl
/usr/local/lib/x86_64-linux-gnu/perl/5.34.0
/usr/local/share/perl/5.34.0
/usr/share/perl/5.34
/usr/share/perl5