And ofc Garak is okay in the end, he was just being as flashy as possible (while the explosion was very dramatic at front-of-house, the back of his shop was fairly untouched - including him. Which helpfully serves as more "evidence" that the "assassin out to get him" doesn't usually use bombing as their method)

But this time when it's revealed he blew up his own shop, people are far more angry with him bc if Kira hadn't been there Julian absolutely would have ran into the flames heedless of the risk and while Julian's too relieved Garak is okay to be properly angry for the meantime, everyone else is very much clamoring to yell at Garak for putting their Doctor at risk. And Garak ofc would never have conceived of that as being a potential problem because surely even Doctor Bashir wouldn't be such a self-sacrificing fool for Garak and has no idea how to take it or feel about it.

So Odo gets stabbed in the back, and tortured into revealing a shameful secret. He should kick Garak out on his ass and never speak to him again, but he doesn't.

So whereas Garak took the chance to go home without hesitation, Odo refused his own chance to go home with equal conviction, so Odo could sit on his moral high horse and judge Garak for giving into temptation, but he doesn't.

Odo might not forgive Garak for what he did, but he understands why he did it enough to stick around and be his friend despite it all. Like, the guy really says "hey you did a really shitty thing to me but I understand, let's get breakfast sometime."