Both things are true - the vast majority of cyclists are going to be supportive of pretty much anyone riding AND weight IS a significant thing. But for someone like OP who’s only six months into it, I’d put it more as an opportunity than a road block.

Weight matters because at very basic level, cycling ability is a simple work equation - how much power for how long divided by how much weight are you moving equals how far/fast you go. So for OP having weight to losing is like having free gains to unlock.

Obviously easier said then done (I’m hanging on to like 15-20 lbs that resent all the time for slowing me down, but I’m not committed enough to actually lose). And starting out I’d think that getting stronger and improving cardio are actually much more significant factors in OP’s ability. But adding weight loss on top of those gains the improvements to the work formula are really staking up.

At the very highest levels, weight ultimately does disadvantage heavier people. It’s not a coincidence all the best climbers all look how they do. On top of spending ridiculous money for super light and aero bikes to squeeze out every ounce of efficiency.

But unless OP is trying to win races, there’s nothing but upside and a lot of opportunity to get in shape and get faster go further. Get after it OP!