Warhammer 40,000: Mechanicus just became more accessible than ever, thanks to Bulwark Studios adding full gamepad support and it appears to work great.
Turn-based strategy games like this are a fantastic fit for gamepad support too. You don't need super-fast responsive times or any kind of accuracy, as you're not directly controlling actions but rather picking positions and executing plans. Warhammer 40,000: Mechanicus is an incredibly stylish and very well done strategy game too, one that does Warhammer well and controlling The Adeptus Mechanicus is certainly interesting.
With the added gamepad support, it's a great time to try it out if you missed the original Linux release back in early 2019. It's been really well received overall with thousands of people putting down their user reviews, to give it a "Very Positive" rating on Steam and it's equally highly rated on GOG too.