Best practices for using JAM on Joinmarket (umbrel application) \ stacker news ~bitcoin

Trying out JAM and am curious whether there is anything a person should consider?

The fees for sending collaborative transactions seem quite high, is there a minimum amount of sats one should use to ensure fees aren't taking the majority of the UTXO?
what rates seem to work best for earning on fidelity bonds?
anything else?

Maximum Fees can be set on the "Settings" page -> "Adjust fee limits". Looking at the current orderbook, you can actually send a collaborative transaction without paying maker fees, as some offer their liquidity fro free. But of course, you'll always pay the miner fees (which is higher than for non-privacy enhanced transactions, as you have multiple inputs/outputs).
See https://github.com/JoinMarket-Org/joinmarket-clientserver/blob/master/docs/fidelity-bonds.md#what-amount-of-bitcoins-to-lock-up-and-for-how-long
Switch from being a maker to being a taker sometimes
Jam still seems to be in beta phase, devs generally like feedback - so if you want to help the community: Report bugs, ask questions, improve the documentation, add feature requests, etc.