ETH Staking, and two setups, have questions about their risk (Ledger + Lido or Edge + Klin)

I don't have 32ETHs (wish I had), so I can't solo stake with ETH. Two options I narrow it down to:

1. Ledger + Rocket pool (or lido)
2. Edge mobile App + in app Skating (based on Klin)

questions I have:

Question #1

I understand that for Approach 1 my ETH private keys are secure on the hardware. However, if I stake them, and I can't unstake them (any risk happens like contract risk (which I don't actually now what that is)) then there is no way I can use my ETHs anyway. So having it on a hardware add extra level of security. However, it does not help with staking risks.

If adding a hardware does not add much when I am staking ETHs is it truly worth investing in hardware? Or if I am extra cautious with my mobile wallet App, they are in the same league as well?

Question #2

How more reliable is Lido and Rocket pool compared to Klin? I understand that they are both more transparent than Klin. However, seems like Klin is having a good reputation, and is working with multiple wallets. So, it might be an easy path for me to use it with Edge mobile app.