Even today there are CRM challenged pilots like your Captain still flying. They might be - or have been - competent with flying generally, on previous types and more basic aircraft; but they might be doing what they do because they don't fully understand the Airbus - (There are many pilots who think the Airbus auto-thrust and GS mini goes wrong with changing approach winds for example, when actually it operates opposite to the Boeing system).
Normally no need to override or modify Airbus GS mini.
I once spent ages trying to find out why my Captain had wanted to continue an ILS approach underneath three enormous CBs, rather than holding off and waiting for them to move away. On the flight home, I showed him diagrams of micro bursts that were in the company manuals, along with the clear instruction to avoid them, and asked why he had disregarded that instruction. I tried to find out what was in his mind, and why he had wanted to take the risk. I never got a convincing answer, and I don't think he was competent. (In the event we had to go around anyway, for other reasons, and the company went into administration soon afterwards, so I could not pursue it).
Avoid if possible but if you can't, go with the flow at your stage - unless the guy is going to kill you, in which case you have to take control.
Last edited by Uplinker; 1st March 2023 at 11:01.