Thing about the current metagame is that it has advanced far past from... you should have timed that better... that is just hindsight because even the player at the time knew what went wrong. Everything that can be learned about samus has in melee, the only new things are ice... which changes the metagame quite a bit if you elect to play with that style, but I can go on for days as for why starting off a stock in fire is better anyway. The second thing that has changed is how samus should edge guard, and it is much more beneficial for her to go off the stage now instead of just blocking the opponent from getting back on with low angeled forward titls, Fsmashes or up titls. The Zair, which is a much better zoning tactic than titls were in melee, and crawl animation/morphball.
what made samus so good in melee was the length of her wavedash, how fast she could pressure shields with her jabs, missile spam and her CCing. However missiles a quite different and slower in PM, you can not CC as many attacks as you could in melee, her pressure game is pretty much gone because the reduction of her wave dash, which makes going in on your opponent much harder. Now what players are going to do to compenstate for these losses are add in mix ups with crawling and boost balls, but there is a problem with that because of how slowly you move in a crawl. Her up tilt has been nerfed so its not great for much anymore. So more players may opt to switch into ice beam with ledge canceling her taunt for offense off the stage for edge guarding. As said before, zairing is the best tactic for zoning because it doesnt have a hurt box, and clanks with most of other projectiles, mario's fireballs included. Her dash has gotten much faster, so a possibility of future samus play is incorperating more pivot fsmashes into her game with dash dancing instead of wavedashing like classic melee samus, but the problem with that is the zair zoning.
Now GeZ i can go on for hours as to how different her meta game can be, but you will see if my interpretation of how she should be played in PM is successful at apex.