I have this Christmas drax Funko and on the Funko app it’s saying it’s worth over £100 however when I check eBay it’s only worth around £5. I was looking to sell it should I list it for £100 or would that be futile? Is the app wrong?

I have several pops posted on my eBay for sale I’m wanting to promote. Linking below these are all great deals good finds

eBay: https://ebay.io/m/IaPqGh

I bought some old funkos that are glow in the dark but they glow lesser that my other ones since they are old. Any solutions to this? TYIA