Here is a list of MT4 firms and brokers that still offer the MT4 as trading platform and their profit split so far. Please check that the latest MT4 update is build 1420 (May 23, 2024).
Firms:
Goat Funded Trader - 40% - 80%
Audacity Capital - 75%
FXIFY - 75%
FundedNext - 80%
FTMO - 80%
Brokers:
ICF - IC Funded - 75% - 80%
OPT - Oanda Prop Trader - 80%
HT - Hantec Trader - 90%
AS - Axi Select - 90%
TC - Traders Trust Trading Cult - 80% - 95%