Sounds like you got it into either non-Trueforce mode (it's still possible if you turn the PS5 on and get the wheel registered super quickly) or were you using the G923 mode?
G923 mode should get you more strength but then the feeling is horrendous because of the super aggressive centering, resulting in constant oscillations - Polyphony do tune each wheel differently and can apply different limits for each wheel. They did a similar strength reduction that's currently applied to our Pro Wheel to the Podium/GT DD Pro a while back, but have since brought the strength back up again for those wheels.
I’ve experienced something similar, it didn’t feel right so I went into the menu on GT7 to check and it picked the wheel up as G923 even though the menu on the wheel is not on g923 compatibility. Turn the wheel off and back on fixed the issue, but haven’t been able to replicate, this was on latest firmware, though GT7 updates itself automatically so might be a GT7 glitch and not Logitech.
I’ve always turn on the PS5, then the wheel, PS button on the wheel to register controller and use the wheel to navigate the menu and run the games
. Perhaps the issue was back when I was new to this, I was using the Dualsense controller first to get into the game then once in register the wheel with PS.
Those with issues, perhaps try alternating your boot up sequence to see if that helps.