If you have a blessed hashref that overloads hashref access, I would think the best way to handle it is change the type of reference you are blessing, or switch to inside-out attributes.
perl -E '
use v5.36;
use overload q{%{}} => sub { { foo => 1 } };
sub foo { $_[0]->$*->{foo} }
my $x= bless \{ foo => 2 }, "main";
say $x->foo;
'
perl -E '
use v5.36;
use Scalar::Util "refaddr";
use overload q{%{}} => sub { { foo => 1 } };
our %attrs;
sub new { my $self= bless {}, shift; $attrs{refaddr $self}= { @_ }; $s
+elf }
sub DESTROY { delete $attrs{refaddr $_[0]} }
sub foo { $attrs{refaddr $_[0]}{foo} }
my $x= main->new(foo => 2);
say $x->foo;
'
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