RF PCB layout 2.4GHz
"High speed signal propagation" does not have an issue with right angle bends at those sorts of frequencies, and in any case your 'bend' is really a component pad, so not much you can do about the discontinuity there. 

If you had a right angle in tracking (not at a component) than clipping off the corner is not horrible practise, but it needs to be fairly extreme and is more of a hard core microwave sort of thing to do, if you have not been forced to use teflon board to control the losses, don't bother. Most modern cad systems can do this for you.   

I do wonder about that place where the signal seems to split in two before connecting to the chip, mostly because it does not look like any microwave structure I am familiar with and is physically too small to be a wilkinson divider.