I almost screwed up just now: when copying the address, I added an extra space, and the wallet kept failing to send out. I thought it was a contract issue blocking me. I went to check the "on-chain" records, but there was nothing on the browser, and I felt a chill... Later, I switched to a different RPC, and immediately saw the pending status. Actually, the transaction was sent early; it was just that the node/indexer I was using was slow, and the delayed display scared me quite a bit.

So basically, what you see as "on-chain" is often a view provided by "a certain node + a certain indexing service," not an all-seeing perspective. L2s are now constantly arguing about TPS, fees, and subsidies—it's lively—but if you really start using them, issues like RPC stability, whether the index can keep up, and how to handle occasional rollbacks are more real experience pitfalls than online debates. Anyway, I’ve now gotten used to: before and after key operations, at least switch between two RPCs/browsers to verify, then check the raw transaction hash on-chain. Don’t be fooled into thinking "no display = no transaction"—that’s a misleading impression.