Help with typography effect in Photoshop

[miniman]

Anyone got any thoughts on how to make this effect (specifically, the blue shadow)?

I have the font sorted and can obviously create a drop shadow but not sure if there's an easy way to fill the gaps, so to speak.

[Ham_and_Jam]

Use chatGPT.

Took 5 seconds-

[Mr Pointy]

Google "Photoshop Text Extrude" & you will get loads of hits & YT videos on how to achieve the effect.