Easter - Good Friday

Easter is a busy holiday weekend and Good Friday is a public holiday. That will mean closures of some shops, restaurants etc. But albergues will be open as will most accommodation. The cathedral will be open but though I don't know the specifics it is likely to be busy with people and services. I would suggest trying to get a credential/passport before you go if you can just to relieve pressure. I haven't walked over Easter but I have over other holidays and it's wise to carry a little extra food just in case as even shops/bars etc that are open can have odd opening hours

I second the advice on carrying a bit of food in case shops/cafes are closed due to weekends or holidays. That said, we walked the CF last year and pilgrim services (food, lodging, etc) were fully available during Holy Week. My guess is that you may in fact be behind the “bubble” of pilgrims attempting to reach Santiago on Easter Sunday.