I really like Celsius. It's refreshing to have a big company that actually pays me! I also like that their CEO is visible and outspoken about Bitcoin and crypto.
You bring up good points about fake wallets. It's hard to validate things in crypto so I can understand why making a wallet makes you nervous. Unfortunately, for someone like me who like to go into the "Degen" perimeter of crypto, using a wallet is necessary.
It sounds like you are making great decisions and I appreciate you commenting on the article. If you do decide to use a wallet in the future, I just hope that you have learned to test it out your written seed phrase on another device before depositing your crypto. Cheers!