You've lucked out then. Long ago I didn't use to unless I was bonding a male rabbit to another rabbit. But later on with all my rabbits indoors, and after getting repeatedly sprayed in the face and having the whole room covered in urine from my buck, fixing them was essential for my sanity
Plus this rabbit couldn't be bonded to the group until he was neutered.
I tried bonding an unneutered pretty calm male to other fixed rabbits, and it just didn't work. Always lead to him bothering the other rabbits with excessive humping, and causing increasing agitation and problems in the group.
As for unspayed does, I had a 7 yr old doe develop uterine abnormalities, luckily not cancerous yet. Got her spayed and she was ok, though much harder and dangerous recovery being older, than with my younger does. All girl rabbits were spayed after this.
When planning on having bonded rabbits, especially the males who really almost always have to be fixed to bond, it usually is better not having those hormones interfering with the process. Occasionally fixing can affect their personality, but not usually. I'd say more so a risk with the males if it does happen. My girl rabbits hardly changed at all, just less frisky.
If not bonding, there's not as much necessity to get the males fixed except for the annoying hormonal issues like the spraying, humping, possible hormonal aggression, and much smellier urine. The females, there's just the increased risk of possible uterine cancer as the rabbit ages.
https://wabbitwiki.com/wiki/Spaying_and_neutering_rabbits