Unfortunately these kinds of cRPGs are made for fps only because that is the style of them. Games like Wizardry, M&M, Lands of Lore etc some of them are grid-based movement, others are not. But what is consistent between them is fps only with character portraits, it's to save budget whilst still delivering a great narrative.
Although, I wouldn't mind seeing a Divinity 2 styled Divinity game again with fps and tps switching, but for my suggestion, I would love fps only like the old games.