I think grief is such a personal thing that support is very much an individual thing that needs to be tailored to the person.
DH just lost his mother and I’ve noticed how differently his siblings are grieving.
With one of them there are very precise unwritten rules around how everyone needs to behave around grieving and how everyone needs to behave towards her and how everyone must grieve in a certain specific “right” way including her siblings - they are not getting it right for her at all and that causes a lot of arguments, friction and distance with her. She genuinely does not seem to realise that her grieving siblings do not have the emotional capacity to meet these very prescriptive ways of being, it is very isolating for her.
Another sibling is very clear on her process, has a good understanding that it is unique/separate process and seeks support by being very clear on what she needs and then is discussing how she is feeling and asking for time to meet up and speak about it, she is also respectful of a need to be flexible around when that time can be and if it needs to be shifted around because people have their own stuff going on.
DH for the first time ever in his family dynamic ls does not have the emotional capacity to step in to save his siblings from how they are feeling which is a long standing family dynamic set up in their family that he never sought out. During this very sad time and he has found himself needing to pull back a bit to process his own grief.
From time to time he needs to sit looking at photos and memories of his mother and sit with the grief and at other times he needs to step out of the grief and do normal family activities.
It is incredibly difficult for outsiders to know what support a person needs unless they are asking for that support themselves as grief is unique and even if a person is clear that doesn’t mean that it is possible to give them the level of support they need.
Sometimes that has to come from professionals who are more able to meet a person where they are at.