Congrats to an awesome investment start!! I'm really impressed.
If EJ has to sell their special funds because Schwab can't/won't take them, then you will owe taxes on the gains in a regular brokerage fund.
If you're liquidating from your EJ Roth and will rollover all the cash in your Schwab Roth then you'll owe no taxes.
LTCG tax rates are 0-20% depending on your tier. Keep that in mind when you file 2020 taxes next year.
I'm not familiar with the Bridge Builder funds at EJ, but since you're young and looking at 30+ years ahead of investing, then you can afford to invest in a little riskier asset classes like growth funds. Mutual funds like the Fidelity Select ones are well managed, but they may throw off large year end distributions (generally LTCG but preferentially taxable at 15-20%). This is the type of fund you'd want in your Roth, not your regular brokerage account since a 10-12% year end distribution might kick you up into a higher tax bracket.
Ditto VYM - except those distributions are Income and are regularily taxed at your ordinary rate not the preferentially taxed rates.
If you want to hold a Tech fund in a regular brokerage account, then efts are generally, (but not always) more tax efficient. So in your regular account you can look at perhaps IGV but keep FSCUX in the Roth.
Morningstar used to have a wonderful page on taxes but they redid their interface--i.e. it's now really sucky. Here are screen shots of the old backdoor pages showing comparisons
Compare Blue: FSCSX to Yellow: IGV
On the surface the Fidelity fund looks like it gives slightly higher returns, but after taxes, the the more efficient etf actually has a better performance. The tax cost ratio shows you're losing 2-3% to taxes each year.
General advice only, not specifics:
30 years ago, there was no Venmo, Zelle, Google, Tesla, iphone, Amazon, Uber, Instagram, FB, Twitter, LOL, WOW, eSports, Cloud anything, streaming anything blah...blah... Heck people used to eat carbs and smoke back then, and oil stocks and big hair were a thing. Not anymore.
So, invest for the LONG-TERM. Always look to the future and that's where the growth will be.
Just keep doing what you're doing, and when the stockmarket tanks, and it will, don't panic.
Because when the market tanks, it is certain sectors that drag the market down while other sectors do well, (think the past few recessions tech bubble, real-estate, or financial sector). So maybe look at a whole-market fund to even out the ride.
You're in it for the long haul, and markets recover. You have a great start to your journey.
Good luck!