I started poking around at this using FanGraph's Transaction Tracker (https://www.fangraphs.com/roster-resource/transaction-tracker?transactiontype=trade&season=2023) and think I found a decent comp:
Ryan Weathers (MIA - SP)
Acquired from Padres for 1B Garrett Cooper and RP Sean Reynolds
23 years old at time of trade (vs. 24 for Priester)
Drafted 7th overall in the 2018 Amateur Draft (vs. 18th pick overall in 2019 draft)
Major League stats at time of trade: 143 IP (vs. 99.2 for Priester), 5.73 ERA (vs. 6.23), 1.49 WHIP (vs. 1.55), 70 ERA+ (vs. 71), 5.53 FIP (vs. 5.72), 10.2 H/9 (vs. 10.3), 1.8 HR/9 (vs. 1.7), 3.2 BB/9 (vs. 3.7), 6.5 SO/9 (vs. 6.2), -1.0 WAR (vs. -1.0)
So Priester's a little older, was picked a little later in the draft, and has performed a little worse, but it's in the realm of similar ;)
Since his trade, Ryan Weathers had a rough 13 inning start with Miami (7.62 ERA), but really took a step forward last year putting up a 3.63 ERA, 1.18 WHIP, 126 ERA+, 4.11 FIP, and 2.1 WAR in 86.2 IP .
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Edited: To take this one step further and compare their minor league careers...
Overall Minors:
Weathers (age 18-24): 337.2 IP, 4.69 ERA, 1.47 WHIP, 4.67 xFIP, 8.34 K/9, 3.31 BB/9, 1.33 HR/9
Priester (age 18-24): 408.2 IP, 3.61 ERA, 1.25 WHIP, 3.89 xFIP, 9.43 K/9, 3.28 BB/9, 0.59 HR/9