iPhone 8 fell into washing machine

I'm sorry, but the odds are heavily against you.

Lean the phone against a wall or other surface so water can drain out of the ports on the bottom of the phone.

Let the phone dry for at least 24 hours

Do NOT put the phone in rice....(old wives tale)

The phone is either going to work or it won't. If it doesn't, it's unfortunately a total loss.

If you were using iCloud Photos, there should be copies of your photos in your iCloud Photo Library on Apple's servers. Configuring a new device (iPhone, iPad, Mac) to use iCloud Photos – using the same Apple ID - would give you access to those photos.

You could also log into the iCloud Web interface at https://www.icloud.com/ to browse the iCloud Photos Library and download to a Mac, a Windows PC, even a Chromebook.

If you weren't using iCloud Photos, then you'll have to hope that you had recent iCloud backups of the phone or that you had been backing up the photos another way (e.g., with regular Image Capture transfers to a Mac).

Yes, if the phone returns to normal operation.

No, otherwise. Hopefully you have a recent backup for the phone on iCloud or a computer.