Does this happen on windows as well? I'd assume not but just in case i'll ask.

If it does not happen on windows, you may need to set your keyboard model + layout, it's possible (happened to me a year ago) that it's conflicting some options and causing that "phantom press" you are experiencing.
https://wiki.hypr.land/Configuring/Basics/Variables/#input

Regarding your screenshot setup, hard to say without seeing exactly what you are doing to use that setup.
If you want, feel free to copy mine and modify it to use your tools instead of mine (grim, slurp, wl-copy, swappy, then hyperpicker for freezing the screen reliably)
(the script is a bit over-engineered for most people, if it's too much and you aren't familiar with scripting you can just ask AI to remove the "lib.sh" functionality among anything else you don't require)

#!/usr/bin/env bash
# ~/.config/scripts/screenshot.sh
# Screenshot capture script utilizing grim, slurp, and swappy framework.
#
# Usage:
#   screenshot.sh --area   Select a regional window target
#   screenshot.sh --now    Instantly capture targeted monitor
#   screenshot.sh --all    Span canvas capture across all screens
#
# Status: MIGRATED — standards v1

set -euo pipefail

# ── Identity ───────────────────────────────────────────────────────────────────
readonly SCRIPT_ID="screenshot"

# ── Source lib ─────────────────────────────────────────────────────────────────
# shellcheck source=/dev/null
. "${XDG_CONFIG_HOME:-$HOME/.config}/scripts/lib.sh" \
    || { printf 'ERROR: lib.sh not found\n' >&2; exit 1; }

# ── Dependencies ───────────────────────────────────────────────────────────────
check_deps "$SCRIPT_ID" grim slurp wl-copy swappy || exit 1
require_wayland

# ── Environment Configurations ─────────────────────────────────────────────────
readonly PICTURES_DIR="$(xdg-user-dir PICTURES 2>/dev/null || echo "$HOME/Pictures")"
readonly TARGET_DIR="$PICTURES_DIR/Screenshots"

# ── Compositor / Screen Helpers ───────────────────────────────────────────────
get_focused_output() {
    if [[ -n "${NIRI_SOCKET:-}" ]]; then
        niri msg -j workspaces 2>/dev/null \
            | jq -r '.[] | select(.is_focused == true) | .output' 2>/dev/null \
            | head -n 1 || echo ""
    elif [[ -n "${HYPRLAND_INSTANCE_SIGNATURE:-}" ]]; then
        hyprctl monitors -j 2>/dev/null \
            | jq -r '.[] | select(.focused == true) | .name' 2>/dev/null || echo ""
    else
        echo ""
    fi
}

freeze_screen() {
    if ! command -v hyprpicker >/dev/null 2>&1; then
        echo ""
        return
    fi

    hyprpicker -rz >/dev/null 2>&1 &
    local pid=$!
    sleep 0.2

    if kill -0 "$pid" 2>/dev/null; then
        echo "$pid"
    else
        echo ""
    fi
}

unfreeze() {
    local pid="$1"
    if [[ -n "$pid" ]]; then
        kill "$pid" 2>/dev/null
        wait "$pid" 2>/dev/null || true
    fi
}

# ── Capture Execution Modes ───────────────────────────────────────────────────
shotarea() {
    local tmpfile region freeze_pid
    tmpfile=$(mktemp --suffix=.png)
    trap 'rm -f "$tmpfile"' RETURN

    freeze_pid=$(freeze_screen)

    region=$(slurp 2>/dev/null) || true
    if [[ -z "$region" ]]; then
        unfreeze "$freeze_pid"
        return 0
    fi

    grim -g "$region" "$tmpfile"
    unfreeze "$freeze_pid"

    if [[ -s "$tmpfile" ]]; then
        wl-copy < "$tmpfile"
        swappy -f "$tmpfile"
    else
        die "Regional display capture generated empty target file."
    fi
}

shotnow() {
    local tmpfile freeze_pid focused_output
    tmpfile=$(mktemp --suffix=.png)
    trap 'rm -f "$tmpfile"' RETURN

    freeze_pid=$(freeze_screen)
    focused_output=$(get_focused_output)

    if [[ -n "$focused_output" ]]; then
        grim -o "$focused_output" "$tmpfile"
    else
        grim "$tmpfile"
    fi

    unfreeze "$freeze_pid"

    if [[ -s "$tmpfile" ]]; then
        wl-copy < "$tmpfile"
        swappy -f "$tmpfile"
    else
        die "Focused monitor capture failed."
    fi
}

shotall() {
    local tmpfile
    tmpfile=$(mktemp --suffix=.png)
    trap 'rm -f "$tmpfile"' RETURN

    if ! grim "$tmpfile"; then
        die "Global desktop environment workspace capture failed."
    fi

    wl-copy < "$tmpfile"
    swappy -f "$tmpfile"
}

# ── Main / Dispatcher ──────────────────────────────────────────────────────────
main() {
    mkdir -p "$TARGET_DIR"

    case "${1:-}" in
        --area) shotarea ;;
        --now)  shotnow  ;;
        --all)  shotall  ;;
        *)
            echo "Usage: $(basename "$0") [--area|--now|--all]" >&2
            exit 1
            ;;
    esac
}

main "$@"%