Me, I'd stay away for carbon fibre frames.
If you do happen to crash, you cannot tell if it's damaged. I do crash.
Full suspension bikes are awesome and your spine will love you for it.
Sounds like you won't need much travel so a 120mm trail bike might be the go.
I like Giant, (I have a 2019 reign sx) they are seen as a bit of a pov pack but everyone I ride with on their exy new bikes can't get in front of me on a 5 yr old bike.
Commercial are straight to public (Australia) and are rad AF.
Wife has a canyon CF strive, great bike but not for me. She's a bit more careful haha
Kids have Marin's, cool bike and cheap AF. I'm quite impressed with them. website only.. again in Australia
Specialised, you pay for a name.
YT are straight to public I think, haven't heard bad things, never owned one though.
Norco were sick, not sure now ... Did have bikes breaking but that was the 2000's, people have long memories of things while short on others.
All bike brands have a shit model or two.
Giant anthem are a NO GO. They break, I broke a friend's one on a XC trail.
Whatever you get, you will love. New bikes are pretty cool compared to anything 5 yrs or more.
Buy the pov pack version of whatever you decide on if new, maybe second hand, and upgrade from there. Frames are all the same through each model range, it's just the bolt on bits that change the level.