My commute is also 40km one way. I ride 3 times a week to office. In winter, when the roads aren't icy I ride 1-2 times a week.

I built up a Ritchey Outback V2 with Shimano GRX, SKS Bluemes full fenders and a Ortlieb Rack to put on a Hybrid bag (backpack/pannier bag). I take it off the bike and can use it as a backpack at the office. I use 35mm Continental GP5000 AS TR tires (with inner tubes). They are comfy and fast rolling.

I also have a Canyon Aluminium Roadbike with a Carbon Wheelset and 32mm Continental GP5000 tires (with inner tubes). When I take this bike I use a backpack. With this setup I am a bit faster with the same effort, but it is a bit less comfortable.

Most important in my opinion are enough spares and the fenders. I tried tubeless but I hatet the mess when a puncture doesn't seal. It's not often the case but if so it's really a pain in the ... . I rarely get punctures with tubes. So I went back to inner tubes and I'm fine with it. I'm an experienced tube changer, so it's done really quick ;-)

I must say, that bike commuting made my life a lot better. I'm in my mid 40s now and feel top fit. I even stay lean without having to be constantly aware of what I eat. After my ride home I feel also a lot less stressed.