I use them and have heat shrink that fits over. I recently had to modified someonessl so the picture below is mid modification and set up -didn’t cut the inverter cables so there is a loop- skip that part. i feel like they may change their minds again.
We have also made our own bends with bus bar. Its a mission though.
You can also mount it terminals up and have the batteries coming in from the side (supported near entry though, so some cable tray)
There is also other bus bar from victron a 6 way one that has entry from both sides, however it is not in a neat one box package like the lynx.