2/3 is the most popular setup as hiding 5 secrets requires somemore thinking.

2/3 + Coordinator File:

If you lose 1 key you're okay.

If you lose 1 key & the coordinator file you are fucked.

If you lose 2 keys you're fucked.

The coordinator file should be stored with each key & a couple encrypted cloud backups & maybe even a physical backup.

So we consider the coordinator file to be backed up at least 4-6 times.

Whereas, the key set in this scenario is only backed up 1-time.

3/5 + Coordinator File:

If you lose 1 key you're okay.

If you lose 2 keys you're okay.

If you lose 2 keys & the coordinator file you're fucked.

If you lose 3 keys you're fucked.

Store the coordinator file with each key...etc...

Coordinator File backed up 6-7 times.

Whereas, the key set in this scenario is backed up 2-times.

In backups and security there's a classic saying:

"1 is none, 2 is one".

This mantra helps to consider that losing one backup can happen, and in multisig you might not realize that you lost one...

So if you lost one more you'd be out of your coins.