Again, the answer is, “it depends”. From my experiences with telco battery systems of up to 15 paralleled chargers of different dates and manufacturers, unless there is some form of load share, the charger with the highest potential will provide the most current. It is critical that paralleled chargers have some type of current limiting, are immune to back feeding and individually fused. Load sharing is probably beyond the scope of what most home solar manufacturers would consider marketable.
I have seen 5000 amp systems at 54 VDC where a few 400 amp chargers were running in current limit at 440 amps and others were running less than 100 amps. The only problems occurred when paralleling switch mode chargers with some of the old school linear chargers whose old capacitors couldn’t handle the high frequency ripple fed back to them.