Gears 4 is the absolute low point for me. The tomatoes line made me LOL but outside of that it was not very enjoyable.
The entire first act fighting those stupid robots was boring. Act 2 gets better and imo, was the best part of the game. Things slow down big time in Act 3 even the more traditional enemies and fights couldn't save iy. Act 4 is solid but a shame it's pretty much entirely underground. By act 5 I couldn't wait for the game to finish.
Gears 5 is better in terms of structure, design and enemies, but the story is awful, the worst in the series by far. Again, Marcus's line to Faz made me LOL and the highlight of the game.