Discussion: DebugTrapSignals in CI?

While trying to see where the seg-faults in the new ppc foss-2023b toolchains occur, I noticed that there is not backtrace in the output. Looking at the CI related CMake presets, I saw that we only export OCT_DebugTrapSignals=no (and OCT_PARSE_ENV=1) on the debug builders.

Should we set these on all builders? If there is a strong argument against it (performance?), would it be worth having on-demand debug builders for other architectures, or is it sufficient to use these flags when debugging locally on the corresponding machines?