Found wallet seed, but it is empty

Hi,

In 2022, a family member sadly passed away unexpectedly. We knew he was into Crypto and we actually found 2 wallet’s seed. One was hidden behind a photo frame (inside the frame, so we had to remove the picture in order to find it). Another was in a black notebook in a random page.

I recovered the 2 wallets successfully but, I can’t see anything on them. I assumming I need to be in the right network to be able to check? I checked for BTC, ETH, BSC, etc but nothing. No transactions either as I would appreciate if they were emptied but no, so no history which leads me to believe, I don’t know what to look for…

Any advise?

UPDATE: I won’t answer private messages, so don’t bother. Won’t share the seeds 🙂 even if they appear empty to me.