For Lynx maximum current specification, you also need to take into consideration the current cutting capacity of the fuses. Maxifuses have only 1000 A cutting-current capacity.
This means that any short-circuit current above 1000 A (even for a 25A fuse) may result in a permanent DC arc over the fuse (and Lithium batteries can easily have 10 kA short-circuit currents, resulting basically in an malfunctioning fuse, that can cause fire at the Lynx Distributor and also everywhere else in the circuit where the over-current is not cut. And you do not want to be anywhere near a 2000A arc (especially DC) without proper personal protection equipment.
I have privately reported to Victron this specification issue when I realized that. I could return the 2 Lynx distributors for a full refund, reporting also the specification issue to the national Victron distributor, suggesting to down-spec the Lynx Distributor as a life-security issue, or at very least to put a warning about maximum fuses current-cutting capacity. I hope someone from Victron finally realizes this security issue and fixes the official specifications.
As a result I had to custom-manufacture an industrial DC busbar, properly dimensioned cupper bars, with HPC fuses capable of cutting 20 kA short-circuit current, of course taking more space and costing quite more.
Regarding short-circuit protection, you may go away with external HPC fuses, but then you need to also dimension the external protections to the fault-case of an arking megafuse (coherent current dimensioning and short-circuit cutting times).
Edit: Also you should put the Lynx, when using Lithium batteries, into a protected closed, safe, environment, as any piece of metal falling through the holes could generate a DC spark projecting hot metal around.