An issue that came up time and again in 5E for our group was having one super tanky armored up character where the rest of the team was more reasonable. The disparity resulted in
a) Enemy can damage the tank and will one shot kill everyone else
b) Enemy won't one shot kill team members but also cannot damage the tank at all.
It looks like 6E addresses that issue.
This is not actually a problem. The tank isn't taking tank 'ware so thry can take damage from harder enemies. The lore says this stuff makes you borderline immune to bullets, and it does so successfully.
SR isn't a game about grinding down HP pools, its an objective focused gams where automatically but slowly winning a fight isn't remotely useful. If your only tension in a run is 'will the runners die' its kinda a lame story with less dramatic tension than a given episode of Power Rangers.
The tanky samurai has the major downside that none of their abilities help anyone where they aren't in a game about splitting the team and coordinating to do different tasks in a heist, where EVERY other PC has extremely useful powers to use remotely like hacking, rigging, or sending spirits to assist someone.
Also SR6 kinda messed it up and made npc stats, even the best of the best, low enough that your average PC is now immune to damage anyway, the problem mmoved from soak, which was expensive, to defense, which is relatively cheap. Now any attack that can hit a pc with wired will instantly kill a PC without wired off net hits, and if they don't the attack can't hit the wired PC.