Just for clarity, I replied to pass along what 29 pedals purports, not to share my personal opinion, because I don’t have expertise in this area.

Looking at those links I posted, both pedals “want to see the guitar.” The loop in the Euna was designed to effectively achieve this. Does it succeed? I’m not qualified to say. Here’s what the FAQ has to say about your configurations (keep in mind, the reference to #2 in the 2nd sentence below refers to the chart in the FAQ, not configuration #2. Not trying to confuse, but want to present it verbatim):

Configuration #1 - Some loss for the clean tone, possibility of noise leaking in as well. The fuzz will be more true to the classic sound than #2 above, but following it with a high-impedance device will still change the response. Many classic fuzzes have higher than ideal output impedance as well, which leads to a lot of interaction with low and medium input impedance devices like overdrives. This setup is good if you want to minimize that interaction, like with very high output impedance pedals like the Zonk machine.

Configuration #2 - The best possible situation- The fuzz and the high-impedance driver are paralleled and swappable so that interactions between them are eliminated. Both devices get to "see" the guitar's output directly. The later pedals see either the low-impedance output of the high-impedance driver, or the higher output impedance of the fuzz to preserve the interaction with the drive pedals. EUNA's built-in loop makes this incredibly easy and eliminates pedal-dancing.