I think if you're under 50 or so, being tech heavy is "OK". I'm not, obviously. I try and maintain some balance, but it requires more attention than I often have.
That has been fine for me up until now.
The funds I expect to tap in ten plus years is more aggressively invested.
TFLO is an interesting kind of ETF investing in Treasuries with a decent return, meaning 4%.
If you are 2-3-4-5 years from expected retirement, I'd go hard conservative now, especially if you are under 60. You'll need to cover health insurance until you're 65. My cost for that went WAY down with Medicare. WAY. We're amidst our prime travel years now, I appreciate in a few more we physically won't feel like long trips.