I think work out your usage. Obvs if it's all road-work, then the choice is obvious. I would never aim to get a racing bike for road work though, which is what I've seen a lot of men motoring top speed around on.
Sounds like the off-road stuff is quite tame, so good tracks and pathways/cycle routes. If that's equal to your work commute or thereabouts you can manage with a solid road bike, and make it super visible with as much 'stuff' as you can.
Only under certain road conditions would I commute to work by bike because of the high levels of bad accidents and other speeding cyclists. It's very unsafe on the roads. Wear high viz jacket, and noticeable high quality helmet, you need you brain to survive contact with the tarmac at speed.
The frame and level of equipment also depends on your needs.
From the MTB high end with front suspension forks and suspension under seat, you can buy a saddle to cushion your bum, and hydraulic brakes and expensive gears, wheels and off road track tyres - to the skinniest wheels with the smoothest tyres and light frame. Either end can be very expensive, and also very expensive to keep up. You might want to go for basic pad and cable brakes, and some fron suspension as a compromise.
I rely on having full hand leather gloves for grip in the worst of icy wind and rain. I can't stand having frozen weather-beaten skin in my hands and it makes cycling miserable without in that weather.
I use old clothes, but a light long water-proof cycling coat (I mean goes down behind the saddle in wet weather, would go past your bum, with sleeves that strap closed).
I have noticed the recommendation for paniers, yes, I agree. Find something that will attach to a rack system and also be a backpack, that un/hooks easily.
Get a thick 'D' lock, that can't be cut with bolt cutters, this way noone can cut your bike and cycle off. You can buy a tamperproof tunnel type wall fixing for home to accommodate the d lock.
A light bike cover that will stow in your panier to keep it dry, chains, etc., can rust, some use a plastic bag.
Either clip your tyre pump to the bike or inside panniers, but keep it with you.
Happy hunting. I've used independents and halfords, and I know specialists knock halfords, but I have found them super helpful and pretty reliable with any issues.