But the compression ratio isn't magical (approx. 1:0.25, for both zlib and zstd in the examples given). You'd probably still want to set aside debuginfo in separate files.
With embedded firmware you only flash the .text and and flash to the device. But you still can debug using the .elf file. In my case if I get a bus fault I'll pull the offending address off the stack and use bintools and the .elf to show me who was naughty. I think if you have a crash dump you should be able to make sense of things as long as you keep the unstripped .elf file around.
But the compression ratio isn't magical (approx. 1:0.25, for both zlib and zstd in the examples given). You'd probably still want to set aside debuginfo in separate files.