All of those things sound great! To be honest, we are in the middle of the first few weeks, and meals on wheels from the inlaws with real vegetables was fab, as was a delivery of stuff we had run out of like bread and milk with a couple of extra puddings thrown in 😉
Also, when relatives popped by early in the morning to fix something without expectation of seeing the child, and also messages even if they weren't answered straight away were really helpful!
Also having loud, bright and open conversations with mutual friends or colleagues about how of course you wouldn't expect to see them for a few weeks, and of course you won't post any photos on social media because any fool who knew anything about adoption knows that, and of course you will be sending them a nice card just like you would with any other new parents... etc really helped to take the emotional burden off us having to be the only ones who had to outline the expectations- if they have any tricky friends or family that you could run interference with, that's sometimes the gift that keeps on giving!
I genuinely appreciated one of my friends sending me adoption/social worker memes when the process was annoying me, but that's just my sense of humour I guess.
Offering to do practical stuff like keeping on top of the garden or collecting parcels that when postman has tickled the knocker with a feather, all that sort of stuff was helpful for us as well.
3 months old is quite young, so I'm assuming they are doing early permanence, but the FC routines might be tricky to adapt to. Offering to being open to accepting texts or stupid videos in the early hours about is this normal for them to xyz was also helpful for us.
We have a very active toddler, and we started rhyme time playgroups with him quite early because he was used to going to nursery, so offering to be a buddy at those slightly later on might help, especially if they are feeling a bit nervous about attending. One of our friends did that and it meant we could chat with her whilst also not being quite as mortified that we knew none of the songs or anything like that.
I've not had a birth child, so I can't say what is normal for that, but I can say adoption is a very strange experience- there is a lot of anxiety about the child, especially because they are still looked after until the paperwork is signed, which adds a lot of complexity For example, our child is exploring our local parks and subsequently getting a fine array of bumps and bruises, but I am hyper aware that we have weekly social worker visits and it feels quite vulnerable to allow him to do that. For your friend they may have heightened anxiety about the child feeding or sleeping right as they will be being monitored quite closely by various social workers and professionals above and beyond the typical ones at least to begin with. I have one friend who is able to hold that space for me and recognise that for me which is incredibly helpful.
We also didn't know what we needed until they arrived- it will be a bit easier with a baby because they are usually relatively similar sizes etc, and you never know what the FC might already have for them but offering to do a last minute dash for colic drops or a specific brand of nappies or the magical antiseptic sudocrem would probably be very helpful.
Aside from that, plenty of cakes and tea is always appreciated.
Congrats to your friends and they are really lucky to have someone like you to support them!