My parents eat Gebrocht (I am the wife) my husband and his family do not.
When we go to my parents for the first days, my mom never made gebrocht for any of the meals & we were told that pots, not used for a year, were okay for us to eat from.
If we went to my parents for the last days, my mom made gebrochts, which we ate on isru chag, but, my mom cooked for us, in aluminum pans, for the seventh day.
It all depends on how flexible your parents/inlaws are.
FYI. ALL our married daughters eat gebrochts. When we go to them, and we always do, they are very careful what they make, & when, so we will feel comfortable eating at their table.
It is almost more of a “family issue” than a minhug issue. How much do you respect your parents’ minhagim and how much do they respect yours !!