I also own two vertical mices, their most expensive ones.
They are built like shit and ive had to replace switches multiple times. I moved to protoarc trackball for everything but gaming.
I will be replacing my logi with keychron m5 as its "premium material" has completely disintegrated in like 5 years and its just nasty.
I hear about this a lot, but I feel like it must be a problem with newer models. I have a G502 from 2016 (pre-logo change) that gets heavy office/gaming use 8-10 hours most days and still works perfectly. The metal scroll wheel is pretty corroded though.