but monero is not the strongest POW network and i want to save long term in the best, and that is bitcoin
Monero is more ASIC resistant than Bitcoin, so it is much better than a simple SHA256 based PoW. Also, because it's so ASIC resistant, it gives the little miners (potato cpu havers) a better chance at contributing to the network. Bitcoin has huge ASIC miner farms absolutely dominating the network, and because SHA256 hardware implementations are so trivial to make, said ASIC's are very cheap too. imo, Monero is the best thing to have if you care about your anonimity
You don't have to save long term in Monero to spend/receive in Monero You're confusing anonymity with privacy. Both are important. Coinjoins don't make your transactions private because they aren't hiding amounts or connections. The whole world can still see. You also don't even really get anonymity, just a weaker form of it by way of pseudonymity. Even putting aside the tedium, expense, and time investment of coinjoining - you still end up with weaker "privacy". You're much more vulnerable to mistakes and chain analysis.
but i was speaking about my long term hodl stack and for that coinjoin is the best option or starting 2 lightning nodes and swap with them
I see