I learned from him that we shouldn't keep connected any Dapps for a long time. It would drain wallet funds after a certain period. Always disconnect your wallet even if you connect for any reason. Don't just leave it as it is. Hackers have powerful tools to trace you and drain your wallet. Don't give that chance.
Thank you for providing this information. OP, I have a wallet that has been connected to my trust wallet Dapp for more than five months now, and I never considered disconnecting the wallet, but after reading this post, I will do so immediately, and I will reconnect the wallet whenever I need it.
What about the wallet created on Metamask, which is directly linked to their Dapps?
Is there a need for disconnect as well?