Not true lol. I used to work at JPMC and got a 20% bump switching to a much much less sexy industry writing software.
But investment banks, including JPM, don’t exactly pay the biggest bucks for SWE aside from a few specialized roles.
The only SWE jobs in finance that really match or exceed FAANG and other top (or even mid tier) tech companies are a very select few elite hedge funds and trading shops.