I am building different tx types on regtest and don't want to care about tx fees.
Here is my bitcoin.config
fallbackfee=100000 paytxfee=100000 maxtxfee=100000 mintxfee=0.1 maxfeerate=100000
I have set the values absurdly high, but bitcoin core still doesn't allow to send a transaction (P2WPKH, 1 input and 1 output) with 100 btc in fees, and still get
Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate) (code -25)