I’m a huge fan of soldering all the wires on, with strain relief, and then dipping the board into any of the rubber- like (tool handle “rubber”) or silicone compounds to create a seal around everything, a couple of millimeters thick or so. Or brushing on the compound.
If embedding the board is worrying me, due to anticipated serviceability issues, then IMO I need to use a more reliable setup that won’t make me worry so much about replacing components. If something blows, just replace the board and repair later if possible.
Screws are put through all mounting holes first so they can be removed to reveal the holes.
Pressing down a small piece of thin clear plastic onto any LEDs (which are hopefully grouped together) makes it easy to see them.