Should be fine. You can seal the brick sill with some penetrating sealant from Porosco or similar, but the sill is probably fine. Wall is likely a brick veneer type construction and designed to dry to outside.
bricks will get wet - especially if it rains OR 1 pours water on them,,, i'd worry more about the seal between the brickwork/window,,, looks like caulk to me w/slight loss of adhesion,,, we see that many times on balconies where the typical complaint is leaking water inside the condo,,, we remove the caulk &, if possible, insert some denver foam then seal w/sika np1,,, IF there's no room for foam, we recaulk then seal over the caulk w/np1
still wondering about the 5* myself,,, then again, brickies never seal joints - they use mortar thanks be to God,,, we get called yrs later when it costs MUCH more to repair :smile: life is good
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