As long as it's a wedding with less than 30 done under Covid restrictions, it can go ahead.
As regards gatherings if six, it won't make any difference to us as we've been careful and met others SD one of two at a time. As mentioned a few posts up, you can still see people, just less and in the ideal world every few days, not every day. We might not like them, but the restrictions are there to protect those we love and hopefully we still have eachother the other side of this.
I know two who've had Covid, one lost their life, the other still isn't back to her normal self about three months later.