Earlier quoted context omitted.
"As an engineer," you've probably yet to realize "technical cofounder" is p97 a polite way to say "second-class citizen." You get more equity than a "founding engineer," I hope. So there's that.
Here's a tip to every reader. If your founders or co-founders are not technical (and never have been) and are pitching stacks using buzzwords, run. Equity is worthless if the startup goes under
I would rather work for someone honest than for a bullshit artist. But I wouldn't necessarily decline to work for the world's best bullshit artist. Just that you want to be very sure you know who at the table is the sucker.