Man pages matching name devel::backtrace in section 3pm:

Devel::Backtrace.3pm.en	debian 10 / libdevel-backtrace-perl
Devel::Backtrace.3pm.en	debian 11 / libdevel-backtrace-perl
Devel::Backtrace.3pm.en	debian 12 / libdevel-backtrace-perl