Best Practice for Using Btc
There is many wallets outhere, some of them open source that you could even compile and run into your device so you can audit the code if you don't want to trust the manufacturer.
My advice use the one you think or see works good (in my case https://blockstream.com/green/)
With the care you are proposing right now, having only what would spend.
I like to think that it's the same than having cash in our pockets, if you lose it you won't claim to anybody.
So create another separate wallet, feed it with sum funds from your hard wallet and enjoy safely. And remember to ALWAYS keep your private keys out of any connected device (at least the big wallet), never share it , never take a picture and so on.