I found the following users who may fit your language exchange criteria:

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/torsama	2023-10-24	Post	`9`	German, English (Native), French (Native)	---
u/noelini_	2023-11-17	Post	`9`	German (Native), English (C1), French (B2)	---
u/miserable-freedom316	2023-11-23	Post	`9`	German, English, French	---
u/safe-introduction157	2023-12-18	Post	`9`	German (C1), English (C2), French (Native)	---
u/gulplana69	2023-12-24	Post	`9`	German, English, French	---

Please feel free to comment on the above posts to get in contact with their authors.