How much ‘infantry’ style skills do non-infantry soldiers do?

I appreciate everyone is a ‘soldier first’, but I imagine that mileage does vary.

I appreciate that infantry will do doing a lot of fighting and battle training / tactics, such as section attacks, company level attacks etc, but these presumably bleed into other regiments if the ‘soldier first’ thing is legit?

How many larger style attacks, CQB training, training on other weapons such as GPMGs and stuff do other roles do?

What this question essentially boils down to is could someone scratch their itch of wanting to run around playing ‘soldier’ whilst in another role to get the both worlds, or is ‘infantry’ style skills frequently used or trained on by other roles?

Thanks