Most wallets will give you a new sub address for a new transaction. Most wallets have Tor built in.
The decoy system is broken by passive adversaries (chain analytic companies and intelligence oolperations) and heavily reduces the privacy guarantees. Still better than Bitcoin, though.
That's why you should know about the risk vectors according to your exposure. Churning is one such solution if you are high risk.
With FCMP++ Monero will gain the high ground again and as a bonus will have LN compatibility.
There are still challenges ahead in this arms race.
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