Don't know if it's that that changed something but now I sticked my former private key in my Lndhub account in Alby's Nostr section. Could then therefore log in with it. Then put the Ln.tips address in the settings. So now indeed Zaps are going to the LnBot wallet...
I can see the Zaps in the Telegram Lightning bot ... but still not as Zaps under the note in Snort.
Getting closer, haha -)
Thanks!