So what’s the 6 week interview for? To recognise talent? Sure I can see that in a junior a bit (but I doubt you find out more in the all those interviews than a 15 minute chat, at least that’s my experience; you will actually need to hire and try them on a project in the team to know their feel for it all) but in a senior that’s the portfolio again.
To me it feels that we are starting in a position where the interviewer assumes I lied about everything I sent in and this all is to prove myself (again and again). I am not in kindergarten; I have decades of experience in huge project; good luck finding a stooge who likes abusive relations.