I'd say I would expect 1 card from DH or him via the DC.
My DH would make the dinner that night and make something he knows I like. We would probably share bottle of wine.
I'd expect a couple of close friends might remember to text on the day and 1-2 others might get me a card or gift.
My DM & DF would send a book from amazon and maybe a card also.
All my brothers would forget.
One of my in-laws would whatsapp me (in a large group) "Happy Birthday!" and about 8 would do the same (but probably didn't know it was my birthday until the first one messaged).
My MIL will always write a card from her and FIL and get a nice appropriate present (usually earrings) and make a point of seeing us to give me them (in a nice way).
I might arrange to go for a coffee/lunch sometime that week (when I normally wouldnt) with the excuse "its for my birthday" with a friend or with DH. I wouldn't expect DH to arrange this and tbh would prefer to arrange what I want to do.
I would insist me, DC and DH, all go to a particular special ice-cream shop and buy an ice-cream.
If cake wasn't in the house I would make or buy cake. Not really for candles or singing, just for eating! My DC now think this is virtually a birthday law.
I'd probably mention late in the day to my work colleagues and bring out something like some biscuits or cake to celebrate/keep us going.
When I started writing this, I was thinking "I never get a birthday party or fancy meal or expensive present". Having written it down I am totally shocked how much fuss I have. Hadn't really thought about it and feel very lucky.