Is Solana staking safer than Ethereum staking?

It depends on what you mean by “safer.”

• For network resilience and decentralization, Ethereum staking is generally considered safer. Ethereum has stronger client diversity, which reduces the chance that a single software bug or client issue could affect a large share of the network.
• For avoiding direct protocol slashing risk, Solana may currently expose ordinary delegators to different and often lower native slashing risk in practice, but the exact penalty and validator-risk mechanics can change, so it’s worth checking the current official documentation before staking.

So the short version is:

• Ethereum is safer if you care most about network robustness and decentralization.
• Solana may be safer if you care most about minimizing certain native staking penalties, but the rules are protocol-specific and can change.

In either case, how you stake matters a lot. Using a centralized exchange or a liquid staking protocol adds smart-contract and counterparty risk on either chain, which can outweigh the native protocol differences.