diff --git a/backend/webdav/api/types.go b/backend/webdav/api/types.go
index 5ed3dfecc..6945360ba 100644
--- a/backend/webdav/api/types.go
+++ b/backend/webdav/api/types.go
@@ -4,6 +4,7 @@ package api
 import (
 	"encoding/xml"
 	"regexp"
+	"slices"
 	"strconv"
 	"strings"
 	"sync"
@@ -107,12 +108,7 @@ func (p *Prop) StatusOK() bool {
 	if len(p.Status) == 0 {
 		return true
 	}
-	for _, statusStr := range p.Status {
-		if parseStatus2XX.MatchString(statusStr) {
-			return true
-		}
-	}
-	return false
+	return slices.ContainsFunc(p.Status, parseStatus2XX.MatchString)
 }
 
 // Hashes returns a map of all checksums - may be nil
diff --git a/cmd/archive/extract/extract.go b/cmd/archive/extract/extract.go
index 0ddbc7ed7..c518788cf 100644
--- a/cmd/archive/extract/extract.go
+++ b/cmd/archive/extract/extract.go
@@ -8,6 +8,7 @@ import (
 	"errors"
 	"fmt"
 	"path"
+	"slices"
 	"strings"
 
 	"github.com/mholt/archives"
@@ -219,10 +220,8 @@ func ArchiveExtract(ctx context.Context, dst fs.Fs, dstDir string, src fs.Fs, sr
 func destPath(nameInArchive, dstDir string) (string, error) {
 	remote := strings.TrimPrefix(nameInArchive, "./")
 	isSeparator := func(r rune) bool { return r == '/' || r == '\\' }
-	for _, segment := range strings.FieldsFunc(remote, isSeparator) {
-		if segment == ".." {
-			return "", fmt.Errorf("refusing to extract archive entry %q with a %q path component", nameInArchive, "..")
-		}
+	if slices.Contains(strings.FieldsFunc(remote, isSeparator), "..") {
+		return "", fmt.Errorf("refusing to extract archive entry %q with a %q path component", nameInArchive, "..")
 	}
 	if remote == "" {
 		return "", nil
diff --git a/fs/config/config.go b/fs/config/config.go
index 9f6ec5956..32b8d1216 100644
--- a/fs/config/config.go
+++ b/fs/config/config.go
@@ -11,6 +11,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"runtime"
+	"slices"
 	"strings"
 	"time"
 
@@ -682,10 +683,8 @@ func UnsetRemote(name string, keys ...string) (removed []string, err error) {
 	if GetValue(name, "type") == "" {
 		return nil, fmt.Errorf("remote %q doesn't exist", name)
 	}
-	for _, key := range keys {
-		if key == "type" {
-			return nil, errors.New(`can't unset the "type" of a remote - use "config delete" to remove the whole remote`)
-		}
+	if slices.Contains(keys, "type") {
+		return nil, errors.New(`can't unset the "type" of a remote - use "config delete" to remove the whole remote`)
 	}
 	for _, key := range keys {
 		if FileDeleteKey(name, key) {